Mr. Do High Score Save Kit Compatibility
Verify compatibility before ordering the Mr. Do high score save kit for documented compatible original Universal Mr. Do arcade hardware. The upgrade installs through the Z80 processor location while keeping the original Universal arcade PCB in service.
Choosing the Correct Mr. Do Arcade PCB Upgrade
The HighScoreSaves Mr. Do kit is designed for documented compatible original Universal Mr. Do arcade PCBs. Before ordering, verify the original board, Z80 processor location, CPU socket, and overall PCB condition.
The primary compatibility checks for a Mr. Do high score save kit are the correct original Universal hardware, a standard Z80 processor installed in a compatible 40-pin socket, and following the documented installation and ROM Saver requirements.
Original Universal Mr. Do Hardware
Z80 Processor and 40-Pin Socket Requirements
The Mr. Do kit requires a standard Z80 processor at the documented processor location.
The Z80 must be installed in a compatible 40-pin CPU socket for normal kit installation.
If the Z80 processor is soldered directly to the PCB, a qualified arcade technician must install a compatible 40-pin socket before the HighScoreSaves kit can be used.
Socketed vs. Soldered Z80
Mr. Do ROM Saver Compatibility
ROM Saver functionality allows designated original program ROMs to be removed when the kit is installed as directed in the Mr. Do installation guide.
Remove only the designated original program ROMs identified in the Mr. Do installation guide. Do not assume ROM positions from another Universal game or another HighScoreSaves kit.
Original and Updated ROM Revision Options
The kit supports selection between ORIGINAL ROM behavior and the UPDATED speed-hack gameplay option. This is a selectable game revision option and does not change the requirement for documented compatible original Universal Mr. Do hardware.
Lives Settings and Score Table Compatibility
The kit supports separate high-score tables for documented 2-, 3-, and 4-lives settings. This keeps saved scores separated when different lives configurations are used.
Upright and Cocktail Cabinet Compatibility
Documented compatible upright and cocktail cabinet configurations are supported when the underlying Universal Mr. Do PCB, Z80 processor, and socket requirements are met.
Mr. Do Pre-Order Checklist
After Confirming Compatibility
Once you have confirmed the original Universal PCB, standard Z80 processor, compatible 40-pin socket, and ROM Saver requirements, use the product page for complete information about Free Play, Top 10 score saving, ROM revision selection, RAM Test, Stealth Mode, Standard/Wi-Fi choices, current pricing, availability, and ordering.
Mr. Do Compatibility FAQ
Which arcade PCB does the Mr. Do kit support?
The kit is designed for documented compatible original Universal Mr. Do arcade PCBs.
Which processor is required?
The Mr. Do kit requires a standard Z80 processor installed in a compatible 40-pin processor socket.
Does installation require soldering?
No soldering is required when the Z80 processor location is already socketed. If the processor is soldered directly to the PCB, a compatible 40-pin socket must be installed first.
Can original program ROMs be removed?
Yes. ROM Saver allows designated original program ROMs to be removed when the kit is installed as directed in the Mr. Do installation guide.
Does the kit support original and updated ROM revisions?
Yes. The kit supports ORIGINAL ROM behavior or the UPDATED speed-hack gameplay option.
Are separate score tables supported?
Yes. Separate high-score tables are supported for 2-, 3-, and 4-lives settings.
Are upright and cocktail cabinets supported?
Yes. Documented compatible upright and cocktail cabinet configurations are supported.