Games Disk The file "games.dsk" is a Burcon CP/M 2.2 disk image containing a few popular games like LADDER (a Super-Mario like chutes and ladders game) and CATCHUM (a Pac-Man like game). These two games require a VT-100 compatible terminal or terminal emulator. You’ll find that increasing the game “Level” makes the play of the game faster, which is especially needed for CATCHUM.