Invaders game in 512 bytes (boot sector)
Pillman boot sector game, a yellow thing eats pills and is chased by monsters.
Toledo Atomchess is the world's smallest chess program in x86 assembly code
A boot sector game in text mode
BASIC language compiler for Colecovision, MSX, SG1000/SMS, Spectravideo SVI-318/328, Creativision, Sord M5, Memotech MTX, Tatung Einstein, Casio PV-2000, Hanimex/Soundic Pencil II, and NES/Famicom.
IntyBASIC compiler for Intellivision (CP1610 processor)