Mr. Do Arcade PCB Upgrade Overview for Original Universal Hardware
Review the available HighScoreSaves upgrade option for compatible original Universal Mr. Do arcade PCBs, including Free Play, Top 10 high score saving, installation requirements, hardware compatibility, serial EEPROM storage, original or updated speed-hack ROM options, attract sounds, ROM Saver support, menu-driven DIP settings, Backup and Restore, separate score tables, Reset Button support, RAM Test, Stealth Mode, and optional Wi-Fi leaderboard support.
This category is intended for collectors, operators, and restoration projects using original Mr. Do arcade hardware. The upgrade keeps the original Universal PCB in service rather than replacing the cabinet with an emulation platform, reproduction board, or multicade system.
Mr. Do installation requires a Z80 processor installed in a compatible 40-pin socket. No soldering is required when the Z80 processor location is already socketed.
Mr. Do Hardware Compatibility and Upgrade Features
The Mr. Do kit is designed for original Universal arcade hardware and adds modern reliability, score saving, menu settings, RAM testing, and optional leaderboard support while preserving the original maze-action gameplay, timing, sound, controls, and cabinet behavior.
- Designed for compatible original Universal Mr. Do arcade PCBs
- Free Play with traditional Coin-Up operation retained
- Permanent Top 10 high score saving
- Reliable serial EEPROM storage with no batteries or failure-prone NVRAM required
- Choice of original ROMs or updated speed-hack gameplay
- Adjustable attract sounds at 25%, 50%, or 100% attract-screen rotations
- Attract mode protection to help reduce monitor burn-in from static screens
- Menu-driven DIP settings for supported options
- ROM Saver support for optional original program ROM removal
- Backup and Restore support for saved high scores
- Separate score tables for 2, 3, or 4 lives settings
- Reset Button support to restart a game without powering off the cabinet
- Built-in RAM Test support
- Stealth Mode for a stock-style startup appearance
- Upright and cocktail cabinet support
- Optional Wi-Fi leaderboard support
View Mr. Do Free Play and High Score Save Kit
View Mr. Do Installation Guide
Before ordering: confirm that your machine contains a documented compatible original Universal Mr. Do arcade PCB and a socketed Z80 processor location. If the Z80 processor is soldered directly to the PCB, a qualified arcade technician must install a compatible 40-pin socket before the kit can be used.
Mr. Do PCB Upgrade Details and Benefits
The HighScoreSaves Mr. Do Free Play and High Score Save Kit adds Free Play, Top 10 high score saving, serial EEPROM storage, selectable ROM revisions, adjustable attract sounds, menu-driven DIP settings, ROM Saver support, Backup and Restore, separate lives-based score tables, Reset Button support, RAM Test, Stealth Mode, upright/cocktail support, and optional Wi-Fi leaderboard support to documented compatible original Universal arcade hardware.
This upgrade is designed for original Universal Mr. Do arcade PCBs. It keeps the original board in service rather than replacing the cabinet with an emulation system, reproduction PCB, or multicade platform.
Main Mr. Do Kit Features
- Top 10 score saving: Stores the Top 10 supported high scores permanently.
- Battery-free storage: Uses reliable serial EEPROM storage instead of batteries or NVRAM.
- ROM revision selection: Choose ORIGINAL ROMs or UPDATED speed-hack gameplay.
- Free Play: Start Mr. Do without inserting coins or opening the coin door.
- Traditional Coin-Up operation: Coins and tokens remain supported when desired.
- Adjustable attract sounds: Attract sounds can be set to 25%, 50%, or 100% attract-screen rotations.
- Attract mode protection: Helps reduce monitor burn-in from static screens.
- Menu-driven DIP settings: Change supported options on screen without cabinet removal.
- ROM Saver: Original program ROMs may be removed when installed as directed.
- Backup and Restore: Back up high scores and restore them later.
- Separate score tables: Different high-score saves are supported for 2, 3, or 4 lives settings.
- Reset Button: Restart a game without powering the cabinet off.
- RAM Test: Hold Player 1 Action while powering up to run a built-in RAM test.
- Stealth Mode: Boots with a stock-style original hardware appearance.
- Upright and cocktail support: Supports documented upright and cocktail cabinet configurations.
- Optional Wi-Fi: Add online leaderboard score submission while keeping local score saving.
Access the HighScoreSaves Mr. Do Settings Menu
To access the settings menu, hold Player 1 Start while turning the cabinet on. Release the button when the on-screen prompt tells you to continue.
Free Play, Attract Sounds, and Permanent High Scores
Free Play allows Mr. Do to start without inserting coins while retaining traditional Coin-Up operation as an available setting.
Supported score data is stored using serial EEPROM, so batteries or NVRAM are not required for saved scores. The kit stores the Top 10 supported high scores permanently.
Attract sounds are adjustable at 25%, 50%, or 100% attract-screen rotations. Attract mode protection helps reduce the chance of monitor burn-in from static screens during idle operation.
Universal Hardware, ROM Revision Selection, and ROM Saver
Mr. Do uses original Universal arcade hardware, and this kit is intended for documented compatible original Mr. Do arcade PCBs.
ROM revision selection allows the cabinet to use ORIGINAL ROM behavior or the UPDATED speed-hack gameplay option.
ROM Saver support allows designated original program ROMs to be removed when the kit is installed as directed in the Mr. Do installation guide.
Backup and Restore, Score Tables, Reset Button, and RAM Test
Backup and Restore support allows saved high scores to be backed up and restored later for service, events, parties, or tournament preparation.
Separate high-score tables are supported for 2, 3, or 4 lives settings, helping keep saved scores organized across different gameplay configurations.
Reset Button support allows the game to restart without powering off the cabinet. A built-in RAM Test can be run by holding Player 1 Action while powering up.
Stealth Mode and Cabinet Support
Stealth Mode allows the kit to boot with a stock-style original hardware appearance.
Upright and cocktail cabinet configurations are supported when used with documented compatible original Universal Mr. Do hardware.
Installation and PCB Requirements
- Designed for documented compatible original Universal Mr. Do arcade PCBs.
- Access to the original arcade PCB is required during installation.
- This kit requires a standard Z80 processor.
- The Z80 processor must be installed in a compatible 40-pin socket.
- No soldering is required when the Z80 processor location is already socketed.
- If the Z80 processor is soldered directly to the PCB, a qualified arcade technician must install a compatible 40-pin socket before the kit can be used.
- Remove only the designated original program ROMs identified in the Mr. Do installation guide when using ROM Saver features.
- Verify Pin 1 orientation, processor alignment, socket condition, board seating, and all processor pins before restoring cabinet power.
- Review the Mr. Do installation guide before installation.
Standard and Optional Wi-Fi Versions
The Standard Kit saves supported scores locally to the PCB and does not require an internet connection for gameplay, Free Play, settings, ROM Saver operation, Backup and Restore, score tables, Reset Button support, RAM Test, Stealth Mode, or local score saving.
The optional Wi-Fi Enabled Kit includes the same local features and adds online score syncing through the HighScoreSaves global leaderboard platform.
Wi-Fi can be disabled without affecting Mr. Do gameplay, Free Play, local score saving, ROM Saver operation, cabinet settings, Reset Button support, RAM Test, Stealth Mode, or menu-driven options.
Mr. Do Kit FAQ
Which arcade PCB does the HighScoreSaves Mr. Do kit support?
The kit is designed for documented compatible original Universal Mr. Do arcade PCBs.
Which processor is required for the Mr. Do kit?
The Mr. Do kit requires a socketed standard Z80 processor in a compatible 40-pin processor location.
How many high scores does the Mr. Do kit save?
The kit stores the Top 10 supported high scores using serial EEPROM storage.
Does the Mr. Do kit support original and updated ROM revisions?
Yes. The kit allows ORIGINAL ROM behavior or the UPDATED speed-hack gameplay option.
Does the Mr. Do kit support Free Play and Coin-Up operation?
Yes. Free Play and traditional Coin-Up operation are both supported.
How is the HighScoreSaves Mr. Do settings menu opened?
Hold Player 1 Start while turning the cabinet on. Release the button when the on-screen prompt tells you to continue.
How do I run the Mr. Do RAM Test?
Hold Player 1 Action while powering up to run the built-in RAM Test.
What does Stealth Mode do on the Mr. Do kit?
Stealth Mode makes the kit boot with a stock-style original hardware appearance.
Is Wi-Fi required for the HighScoreSaves Mr. Do kit?
No. Standard kits save supported scores locally. Wi-Fi is optional for online leaderboard support.