Mortal Kombat+ is a project to disassemble and remaster the original 1990s arcade trilogy, fixing bugs in the originals and adding stronger AI and new features, such as tag team play and combo meters: they are each "completely reverse engineered back to machine code, fixed and rebuilt." Roms for each game are provided along with a special edition of MAME to play them on. [via]
I love this sort of thing. May faithful yet extended remasters of game classics be the next big thing: Gauntlet with skill trees; Defender in ultra widescreen; massively-multiplayer Q*Bert.
Below, my mockup of 8-bit classic Barbarian with plausible tweaks (Someone please help me with my Z80 assembly, it's very sick)