BAYWATCH (SEGA) PINBALL – ROM UPGRADE SET
Price range: $17.99 through $53.99
BAYWATCH (SEGA) PINBALL
This listing is for a set of Roms to upgrade your Baywatch pinball machine to the latest software version
Please message me if you have questions or need a version/chip not listed.
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Revision information / history is not known for the official version 4.0 and below. But here are the release notes from Chad @ pinballcode.com for 4.02 and 4.01
BAYWATCH Unofficial v.4.02
“Quality of Life Update”
(last updated December 16, 2025)
ATTRACT MODE, HIGH SCORES, and PORTALS(MENU):
- Added a pause at the game power up so the voice call “Baywatch we’ll be right back” won’t get cut off. (May still be cut off if you do not have an original CPU board.)
- Changed music for “Enter Initials” for Regular High Scores and added “Well Done” voice call.
- Changed music for “Enter Initials” for Shark High Score and added “Shark” voice call.
- Added sound when scrolling through initials during “Enter Initials”.
- Fixed Adjustment 27 “HSTD Reset Count” to be able to choose all numbers between 100 and 2000.
- Fixed Adjustment 50 “Shark Flipper Control” set to 75 to disable Auto Shark Flip. (00 is no delay, 01 to 74 is to add delay, 99 to 76 is to reduce delay.)
BALL LOCK, MULTIBALL, and EARTHQUAKE:
- Tweaked Adjustment 47 “Lock Qualify Criterion” to be able to disable Auto Ball Lock spotting/progressing between balls. If set to Hard or Extra Hard. Default: Moderate
- EXTRA EASY: One hit to all Drop Targets to Spot ALL 3 Locks / Auto Spot between balls until first Multiball.
- EASY: One hit to all Drop Targets to Spot 1 Lock, next hit to all Drop Targets Spots 2 Locks / Auto Spot between balls until first Multiball.
- MODERATE: One hit to all Drop Targets to Spot 1 Lock / Auto Spot between balls until first Multiball.
- HARD: One hit to all Drop Targets to Spot 1 Lock / NO Auto Spot between balls.
- EXTRA HARD: TWO hits to all Drop Targets to Spot 1 Lock / NO Auto Spot between balls.
- Added logic to the Drop Target Bank. The game now plays ascending sounds depending on how many drops are knocked down. Previously the game chose random sounds.
- Fixed an issue which caused the Drop Target Bank to not reset properly after the end of any of the Main Modes.
- Fixed an issue with Adjustment 45 “Multiball Restart Criterion” if set to Easy the game would not offer the 15 sec restart timer. While Extra Easy and Moderate did.
- Changed voice call when completing the 3-Bank drops the 1st time when two completions are required to light a Lock (if Adjustment 47 “Lock Qualify Criterion” is set to Extra Hard) .
- Added “Earthquake!” voice call when collecting a Jackpot during Earthquake.
- Shoot Again lamp will now flash during Multiball while ball save is active.
- Shoot Again lamp will now flash during Earthquake while ball save is active.
IRONMAN, WATERSKI, and SEARCH & RESCUE:
- GI is now off during Search & Rescue to draw the player’s attention to look up at the DMD.
- Added “Search & Rescue” voice call before the “Shoot the Spinner” voice call when all 5 stand up targets have been completed to light “Search & Rescue” mystery mode.
- Search & Rescue starting SFX and voice call timing have been adjusted to better align with display animation.
- Added “Nice rescue!” and SFX at the end of Search & Rescue.
- Added a “Fail” SFX during Ironman video mode once the girl stumbles.
- Added progressive speed during Waterski video mode. Starts a little slower then speeds up when you hear an “Engine rev” SFX.
- Added a short delay at the end of Waterski and Ironman video mode, to be able to read the Mode Total score.
- Changed Ironman behaviour. Hitting the side ramp during any Mode & Multiball will no longer count progression towards Ironman. Progress will now only count during Mainplay.
- Added logic to the yellow Ironman light at the side ramp. It now flashes during Mainplay to signal that ramp hits will progress Ironman letters. Solid on means Ironman has been spelled completely and is ready to start at the right Spinner.
SHARK FLIP, SHARK HOLE, and SHARK AWARDS:
- Fixed a scoring and display issue with “50M + Lite Extra Ball” Shark award. The game would only display and grant 40M instead of 50M.
- Fixed a scoring and display issue with “100M + Earthquake” Shark award. The game would display and only grant 50M instead of 100M.
- Fixed a display issue where the screen could falsely show “FF more shots for Shark Award” even though “that shot” already gave the Shark Award.
- Reduced silent ball save timer for Shark VUK eject back to v.4.00 timing to prevent unnecessary ball saves.
- Fixed an issue with a silent ball saver during Auto Shark Flip. If Laser Kick was NOT lit and Auto Shark Flip engaged, a hidden ball saver would get activated for the rest of the ball at the Left Outlane, this has been corrected.
- Added a slight pause when hitting the Shark Hole. So the player is able to read the display effects better.
- Changed SFX for a successful Shark Hole shot (Shark Award granted)
- Changed SFX for complete spelling S”H”A”R”K targets.
MAIN MODES
TIDAL WAVE:
- Fixed an issue which could cause the Tidal Wave mode music to get stuck for the entire rest of the game.
- If the ball drained before the Mode start sequence has finished.
- If the ball drained while the “Upper Launch” diverter was still active.
- Added missing flasher to the light sequence.
- Added “Help” voice call as a possible SFX when hitting any inlane switch during this mode.
- Updated flasher FX to highlight proper mode shots.
CPR:
- Added previously missing alert voice calls for the mode timer running out.
- Fixed an issue where the game could count two shots instead of one, if the final mode shot was either the center or right ramp.
- Added new previously unused SFX when completing the mode with a successful rescue.
- Added new previously unused “Breathe” voice call as a possible SFX when hitting any of the 3 available ramp shots.
DIVER TRAPPED:
- Fixed a lamp allocation error. Lamp 60 (Surf Board Spinner) will now flash instead of lamp 63 (Tidal Wave Spinner).
TOURIST SEASON:
- Added Right Ramp arrow lamp to draw more attention where to shoot.
MISCELLANEOUS:
- Reduced silent ball save timer for Laser Kick. To prevent unnecessary ball saves.
- Removed silent Under Arch VUK ball saver. Balls draining fast at the right outlane could accidentally fall into the VUK resulting in unnecessary ball saves.
- Removed “Now!” voice call as one of the possible random “Mode Total” FX and replaced with “Nice Rescue” voice call instead.
- Fixed an issue where the End Of Ball Bonus Count light show would end early during the Bonus Count.
- Added a SFX when changing the Skill Shot selection.
- Added the ability to move the Skill Shot selection both ways: left flipper up, right flipper down.
- When launching the ball with two flippers, the selected Skill Shot will no longer inadvertently change.
- Prevented the game from awarding “Three of a Kind” Skill Shot twice in a row on a game with extra balls. Three of a Kind now resets after you collect and you have to get three more to achieve it again.
- Prevented the game from awarding “Variety” Skill Shot twice in a row on a game with extra balls. Variety now resets after collecting and you have to get three more different skill shots to achieve it again.
- Added a Lite Extra Ball award alongside Squid Pops when achieving the “Variety” Skill Shot. This is to incentivize the player to go for Variety even more!
- Fixed an issue where the game could pick the “Now!” voice call for successfully completing any of the Main Modes and replaced it with “Nice Rescue!” voice call instead.
- Added logic to the Right Inlane “Lite Orbit” switch. The orbit diverter will no longer open right away. It now waits until the Upper Left Orbit switch gets hit, before activating the diverter coil. This will greatly reduce the wear and tear of the whole diverter mechanism.
- Fixed a diverter issue, which could cause right Spinner shots getting diverted into right ball catch/launch even though they were supposed to feed the upper right mini flipper.
- Added Shaker effects for Spinner hits, Ball Locks and Earthquake Jackpots.
- Changed behavior of the right inner inlane “Squid Pops”
- Old behavior.
- OFF: Either Available, Unavailable or broken lamp (Couldn’t be sure)
- Flashing: Timer active to enter Pops.
- ON: NOT USED
- New behavior.
- OFF: Unavailable or still a broken lamp.
- Flashing: Timer active to enter Pops.
- ON: Available
- Note: Unavailable means feature not active due to Mode or Multiball is running or Squid Pops is already active permanently(rest of ball)
- Old behavior.
BAYWATCH Unofficial v.4.01
(December 2, 2017)
Help is on the way! The “best office in the world” from this classic 90’s TV show themed pinball machine just got better!
Highlights
SKILL SHOT:
The more difficult Skill Shots are now worth more points. Skill Shot THREE OF A KIND AWARD remains 50M but VARIETY AWARD is now worth 150M to incentivize player to attempt all three Skill Shots.
CPR:
Fixed bug where a successfully completed CPR mode previously did not grant 50M Completion Bonus points.
CHOPPER RESCUE:
Instead of rescuing 10 swimmers for 20M each, you only have to rescue 8 swimmers for 25M each.
DIVER TRAPPED:
Fixed Diver Trapped bug so correct bonus is displayed and granted.
SHARK COVE:
Each hit to the bank of SHARK targets kills one shark for 10M. Each hit to the SHARK SUPER SCOOP kills all sharks remaining in wave for DOUBLE POINTS.
No limit to amount of times you can collect double points via SHARK SUPER SCOOP.
TIDAL WAVE:
Fixed bug where very first Successful Rescue would not count. Failed rescues no longer count against you so you are now only limited by the timer. Fixed bug where a successfully completed Tidal Wave mode previously did not grant 50M Completion Bonus points.
EARTHQUAKE:
Allowed full Left Ramp shot to also function as Jackpot during Earthquake if Left Ramp Trap Door is disabled (now available via Adjustment 51) or broken.
SHARK AWARD:
Shark Awards now progress faster. Shark Award #3 (SHARK) is now on a 1 minute timer instead of being enabled for remainder of ball, this allows the player to continue to progress with the collecting of the higher Shark Awards without having to drain the ball.
BALL LOCK:
Default auto advancement of Ball Lock has been modified. You are no longer guaranteed All Locks Lit on Ball 2 by default.
EOB BONUS:
End Of Ball Bonus is now ( 1M + (1M x GUARD) + (2M x LIFEGUARD) + (3M x RESCUE MISSION) ) x SPF BONUS MULTIPLIER.
SPF BONUS MULTIPLIER:
SPF Bonus Multiplier will now increase twice as fast (was 2X>3X>4X>5X>6X>7X>8X>9X>10X, is now 2X>4X>6X>8X>10X).
GATE TIMINGS:
Gate timings have been adjusted to be more lenient so ball should be routed correctly more often.
Detailed Notes
SKILL SHOT:
- Increased default value of Shark Hole Skill Shot from 20M to 40M.
- Randomized lit Top Lane at start of each ball during non-tournament play.
- Shark Jackpot lamp now flashes along with Shark Scoop lamp to better indicate Skill Shot 2 shot.
- Increased Skill Shot Variety Award from 50M to 150M to incentivize player to attempt all three Skill Shots.
- Failed Skill Shot will now play a previously unused quick descending sound effect that sounds more appropriate for a failure event.
CPR:
- Fixed bug where a successfully completed CPR mode previously did not grant 50M Completion Bonus points.
- Changed successful CPR shot to say unused “Nice rescue” and ensure Rescue Successful is shown on display.
- Fixed bug where bad sound plays at start of CPR in the middle of the voice call of “OK everyone here’s the situation, some swimmers need help, shoot the ramp to apply CPR”.
CHOPPER RESCUE:
- Updated Chopper Rescue requirement of 10 swimmers at 20M per swimmer to 8 swimmers at 25M per swimmer.
- Added previously unused voice calls of “Shoot the left/middle/right ramp” to roving Ramp Shots at end of Chopper Rescue to help player know which ramp to shoot.
- Made it so roving Ramp moves every 5 seconds instead of odd pattern of 4/4/2 seconds.
- Removed “I guess you could say it was pretty good” from random choice during Chopper Rescue gameplay and replaced with “We’re in route”.
DIVER TRAPPED:
- Fixed Diver Trapped bug so correct bonus is displayed and granted with each successful Hole shot.
- Removed constant flashing under playfield of the Left Orbit flasher to avoid confusion of where to shoot since Left Orbit is not a shot used in this mode.
- Added helicopter sound effects to end of Diver Trapped before collecting Extra Ball.
- Added voice call of “Extra Ball” to successful Shoot Hole For Extra Ball at end of Diver Trapped.
SHARK COVE:
- Allowed Shark Cove to honor the Shark Super Scoop for multiple shots.
- Keep Shark Super Scoop lamp flashing for entire Shark Cove mode.
- Doubled points for Shark Super Scoop shot.
- Flash double point bonus on display for Shark Super Scoop shots during Shark Cove.
- Increased pause when displaying Shark Cove Completion Bonus.
TIDAL WAVE:
- Fixed bug where game is supposed to pause and hold ball in Upper Ball Launch until start of mode voice call is completed. This pause can be aborted by hitting both flippers.
- Made it so Side Ramp Jackpot lamp flashes along with Spell Ironman lamp to better indicate Rescue Jackpot shot.
- Made it so only successful saves count towards the 3 tries.
- Fixed bug where the very first successful rescue would not count.
- Fixed Tidal Wave to properly end on three successful rescues only.
- Fixed bug where 10M is erroneously granted sometimes to “Successful Rescue” during Tidal Wave.
- Fixed bug where it was possible for Side Ramp lamp to be stuck flashing after end of mode.
- Fixed bug where a successfully completed Tidal Wave mode previously did not grant 50M Completion Bonus points.
TOURIST SEASON:
- Increased Tourist Season Ball Save Timer from 8 seconds to 10 seconds.
- Added flashing Shoot Again lamp while Ball Save is active at start of Tourist Season.
- Side Ramp Jackpot lamp now flashes along with Spell Ironman lamp to better indicate Jackpot shot during second section of this mode.
EARTHQUAKE:
- Allowed full Left Ramp shot to also function as Jackpot during Earthquake if Left Ramp Trap Door is disabled (now available via Adjustment 51) or broken.
WATER SKIER VIDEO MODE:
- Turned off G.I. during Water Skier Video Mode.
- Adjusted scoring of Water Ski video mode from 1M per passed obstacle to 3M per passed obstacle.
- Fixed bug so center ramp will now correctly score when hit on the left-center.
- Fixed bug at end of Water Skier where last ramp does not count.
- Fixed bug to prevent incorrectly adding ghost points at end after final ramp.
- Prevented “Alright” voice call from being cut short at end of Water Skier Video mode.
- Added 50M Completion Bonus for successfully completing Water Skier Video mode.
IRONMAN VIDEO MODE:
- Allowed all of intro video for Ironman to play and allow it to be aborted with both flippers.
- Added motor boat sound to Video Mode intro for Ironman.
- Changed music during Ironman to previously unused music.
- Increased amount for hitting flippers from 250,000 to 500,000 per hit.
- Added “Well Done” voice call to winning Video Mode Ironman race.
- Increased bonus for successfully completing Ironman from 20M to 50M.
SEARCH & RESCUE:
- Added previously unused “Search and rescue” voice call to Search & Rescue display.
- Will now display the SPF Bonus Multiplier video if granted during Search & Rescue.
- Will now display X Million video if granted during Search & Rescue.
- Will now display Super Laser Kick video if granted during Search & Rescue.
- Rearranged collection of Search & Rescue and Ironman so S&R comes first to prevent Ironman Video Mode from being played twice in a row.
- Increased minimum Search & Rescue award of 10 Million to 25 Million during non-tournament play.
SHARK AWARD:
- Allowed for faster Shark Awards progression.
- Changed Shark Award #3 to be on a 1 minute timer.
- Extended timer for Switch 54 related to Shark Flipper to allow successful Shark Award to register more often.
SHARK FLIP:
- Adjusted successful Shark Flip Award to grant 25M instead of 10M.
- Made it so if Adjustment 50 is set to 99 then automatic Shark Flip is disabled.
LASER KICK:
- Extended timer of Ball Save for Laser Kick.
- Added previously unused “Looks like he’s going to pull through” voice call to Laser Kick.
BALL LOCK:
- Changed Adjustment 47 (Lock Qualify Criterion) so each completion of Drop Targets will advance lock by 1.
- Made it so Auto Advance of Locks between balls will only do 1 on Moderate (Default).
MULTIBALL:
- New light show at Start of Multiball where game is dark except for both flashers alternate on boat siren to make Multiball intro more dramatic.
- Return to regular game music at the end of Multiball.
INSTANT INFO:
- Fixed bug where Instant Info doesn’t properly display if there is a Bonus Multiplier.
- Fixed bug where it will display 11X SPF Multiplier even though it is really 10X.
- Removed long Pause at end of Instant Info so it will cycle properly.
END OF BALL BONUS:
- Slowed down EOB Bonus screens slightly.
- Removed 1M bonus for aborting EOB Bonus.
- Fixed EOB bug where every 5th GUARD letter and every 5th Life Guard collected would not add to EOB totals.
- Fixed EOB bug so it will calculate and display Rescue Mission bonus correctly.
- Fixed EOB bug where SPF Bonus Multiplier would display 11X multiplier even though it is really 10X.
- Increased Lifeguard EOB to be 2M per collected Lifeguard instead of 1M.
- Set SPF Bonus Multiplier to increase twice as fast (new progression is 2X, 4X, 6X, 8X, 10X).
MISCELLANEOUS:
- Added Shark Chomp Initials to Attract Mode which is now only achievable via successful Shark Super Scoop Jackpot during Multiball.
- Added sound effects to SHARK target that has already been hit.
- Added sound effects to previously silent 3-Way Combo award.
- Updated mode timers that were 43 seconds to now be an even 40 seconds.
- Made it so mode specific voice calls play more often when ball rolls over inlane switches.
- Increased Baywatch Millions start from 1M to 2M.
- Disabled ability to select PRNT from the Main Menu.
- Disabled ability to select SERV from the DIAG menu (to prevent showing Sega phone number).
- Fixed flash sequence to flash both lamps on boat siren on playfield more often.
- Removed logic around Average Ball Time to no longer penalize a player if the previous players had longer ball times.
- Increased power to Trough VUK.
- Fixed bug where High Coil Power will break Upper Control Gate functionality.
- Setting of Tilt Warnings = 2 is now allowed and default is 2.
- Extended start-of-ball Ball Save timer slightly.
- Made it so Adjustment 51 will Enable or Disable the Left Ramp Trap Door (default is Enabled/Yes). If the Trap Door is disabled then a regular Left Ramp shot will always count as the same Lock or Jackpot shot.
- Reduced the amount of GI OFF/ON flashing.
- Gate timings have been adjusted to be more lenient so ball should be routed correctly more often.
TIP:
You will want to adjust your automatic SHARK FLIP to maximize successful shots. You can adjust this by going into Service Mode. Remove the glass and eject one ball. Then go into DIAG and scroll all the way to the right and select BAY (this icon looks like the lifeguard tower). This will bring up the SHARK FLIPPER CONTROL adjustment and will allow you to play with the switch and see how the ball/flipper behaves over and over as you make changes to this setting. The ball will automatically eject from the Shark Scoop as you are testing in this mode. Setting 00 is no delay, 01 to 74 is to add delay, and 99 to 76 is to reduce delay. Keep trying until you find the best setting. Note, if you set this adjustment to 75, it will DISABLE automatic Shark Flip.
DISPLAY ROMS NOTE:
While this CPU patch does not make any changes to the DISPLAY ROMs, you want to make sure your game is running DISPLAY VERSION 4.00 for proper game functionality. You can verify this by checking the very first screen that is displayed when you power on your game.
| Weight | N/A |
|---|---|
| Sega Options | CPU/DISP SET v4.02 / 4.0 [C5,ROM0,ROM3], CPU/DISP SET v4.0 [C5,ROM0,ROM3], CPU/DISP SET v4.01 / 4.0 [C5,ROM0,ROM3], [C5] CPU ROM v4.02, [C5] CPU ROM v4.01, [C5] CPU ROM v4.0, [ROM0] Display ROM v4.0, [ROM3] Display ROM v4.0, [U7] SOUND ROM, [U17] Sound Rom, [U21] Sound Rom |
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BAYWATCH (SEGA) PINBALL –...
Price range: $17.99 through $53.99
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