Mr Do Free Play and High Score Save Kit
Product information "Mr Do Free Play and High Score Save Kit"
Mr. Do Free Play and High Score Save Kit for Universal Arcade PCBs
Upgrade your original Mr. Do arcade PCB with reliable Free Play, Top 10 high score saving, selectable ROM revisions, attract sounds, menu-driven settings, RAM Test support, and optional Wi-Fi leaderboard functionality while preserving authentic Universal arcade hardware.
Designed for original Universal hardware, this plug-and-play upgrade improves long-term reliability without changing gameplay timing, controls, sound, or the classic maze-action gameplay collectors expect.
Start games without coins while still supporting Coin-Up operation.
Permanently stores the Top 10 supported high scores.
Choose ORIGINAL ROMs or the UPDATED speed-hack version.
Upload scores online to global arcade leaderboards.
Upgrade Your Mr. Do Arcade Experience
Restore and enhance your original Mr. Do arcade machine with a professionally designed Free Play and High Score Save Kit built specifically for authentic Universal arcade hardware.
Original boards often lose high scores, rely on aging components, or suffer from unstable resets. This upgrade modernizes your PCB while preserving the original gameplay, controls, timing, and fast-paced maze gameplay that made Mr. Do one of the most recognizable arcade classics.
Unlike emulation systems, replacement boards, or multicade conversions, this kit keeps your original arcade PCB in service while improving long-term reliability for collectors, operators, and restoration projects.
Available Kit Options
Build your kit exactly how you want it. Choose between a Wi-Fi Enabled Kit or a Standard Save Kit.
Optional processor and socket upgrades are also available to simplify installation on original hardware.
Important Installation Notes
- Socketed Z80 Required: This kit requires a standard Z80 processor installed in a compatible 40-pin socket.
- No soldering if socketed: No soldering is required when the Z80 processor location is already socketed.
- If the CPU is soldered: Install a compatible 40-pin socket before installing the kit.
- Original Universal hardware: Confirm that your cabinet contains a documented compatible original Universal Mr. Do arcade PCB.
- Review the guide first: Read the Mr. Do Installation Guide before installation.
Main Features
- Easy Install: No soldering, board modifications, or special wiring required when the CPU is already socketed
- Permanent High Score Saving: Uses reliable serial EEPROM instead of batteries or NVRAM
- High Score Save: Stores the Top 10 supported high scores permanently
- ROM Revisions: Choose ORIGINAL ROMs or UPDATED speed-hack gameplay
- Attract Sounds: Adjustable at 25%, 50%, or 100% attract-screen rotations
- Free Play: Start games without coins or opening the coin door
- Coin-Up Support: Coins and tokens remain supported when desired
- Attract Mode Protection: Helps reduce monitor burn-in from static screens
- Menu-Driven DIP Settings: Change supported settings on screen without cabinet removal
- ROM Saver: Original program ROMs may be removed when installed as directed
- Cabinet Support: Works in documented upright and cocktail cabinet configurations
Additional Features
- Backup and Restore: Back up high scores and restore them later for parties, events, service, or tournaments
- Separate Score Tables: Different high-score saves 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 the built-in RAM test
- Stealth Mode: Boots with a stock-style appearance for a more original look
Installation Information
- Installation Difficulty: Easy
- Soldering Required: No, if the Z80 CPU is already socketed
- Processor Requirement: Requires a standard Z80 processor
- Socketed CPU Required: Install a compatible 40-pin socket if needed
- Cabinet Compatibility: Upright and cocktail cabinets supported
- Installation Guide: View/Download Mr. Do Install Guide (PDF)
Standard and Optional Wi-Fi Versions
The Standard Save Kit saves supported scores locally to the PCB and does not require an internet connection for gameplay, Free Play, ROM revision selection, ROM Saver operation, Backup and Restore, score tables, RAM Test, Reset Button support, 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, menu-driven settings, ROM Saver operation, RAM Test, Reset Button support, Stealth Mode, or cabinet operation.
Mr. Do Free Play and High Score Save 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 standard Z80 processor installed in a compatible 40-pin socket.
How many high scores does the Mr. Do kit save?
The kit saves the Top 10 supported high scores using serial EEPROM storage.
Can I choose both Mr. Do ROM revisions?
Yes. You can choose between the ORIGINAL ROMs and the UPDATED speed-hack version.
Does the Mr. Do kit support Free Play and Coin-Up operation?
Yes. Free Play and traditional Coin-Up operation are both supported.
What is the Backup and Restore feature?
Backup and Restore allows saved high scores to be backed up before an event and restored later.
How do I run the Mr. Do RAM Test?
Hold the Player 1 Action button while powering up to run the built-in RAM Test.
What does Stealth Mode do on the Mr. Do kit?
Stealth Mode boots with a stock-style appearance for a more original look.
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.
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1 review
October 16, 2025 12:09 PM
adds much needed items to this game!
This kit adds some needed items to the game! High scores save with attract mode is fantastic!
Super easy to install.