After 30 years, the world can now play the lost Marble Madness II

Enlarge / A glimpse at what could have been... (credit: Aurich Lawson | Getty Images)

For decades, Atari's scrapped prototype arcade sequel Marble Madness II has been one of the un-emulated "holy grails" for popular multi-platform emulator MAME. This has limited gameplay to a handful of rare cabinet collectors and convention goers. That changed this week, though, with the unexpected and unexplained leak of a full Marble Madness II ROM that can now be played by the world at large.

After confirming the ROM's authenticity by comparing its gameplay to extant footage, we looked into the how and why of getting this game running via emulation—and talked to community experts about Marble Madness II's unique mix of exciting arcade history and disappointing gameplay.

A tale of two Marble Madness II's

First, a bit of background. In 1991, seven years after the hit release of Marble Madness, Atari Games set out to create a sequel that included "more of everything," as designer Bob Flanagan put it in a 2020 interview with Antstream. That prototype sequel, subtitled Marble Man, packed in 17 large and complicated mazes, loads of new enemies, three-player support, a pinball-style bonus game, and even power-ups that let players fly across the level or crush threats in their path.