Yeah, this ROM is relatively easier to patch than Balloon Fight. It seems Climber arcade was not using shared RAM and synchronization between two CPUs. But still, it would be fun for me to make not just a patch, but to rebuild the game, make the code relocatable, and add DIP switches. Also I would not like to use such mappers as MMC1, I am sure CNROM will be enough, but I am not sure that there will be enough free space for additional code, since the cartridge is almost completely full.
I recompiled this game for the NES, here's a video showing some of the game differences: https://www.youtube.com/watch?v=u0b9UNi1Dqs
April 11, 2021, 12:45:44 pm - (Auto Merged - Double Posts are not allowed before 7 days.)
Btw, I noticed a bug in that NES port (nes.goondocks.se).
In a two-player game mode, the first joypad binds to the second player (wearing a red coat), and the second joypad to the first player (blue coat).
The arcade version works fine.
Yeah, just noticed it myself. Well, good luck with your patch!