Play 100-in-1 Contra Function 16 [a1] Online

100-in-1 Contra Function 16 [a1] is one of those weird NES multicarts where Contra is the main draw, but the rest is a mixed bag of knockoffs and bootleg minigames. The Contra portion feels familiar—side-scrolling, spraying bullets, dying instantly if you misjudge a jump—but the other games range from barely functional to oddly charming in a janky way.

Some levels glitch out halfway through, and a few of the "100" games are just reskins of the same basic mechanics. But there’s something oddly compelling about how rough it all is, like digging through a bargain bin of forgotten prototypes. 100-in-1 Contra Function 16 [a1] isn’t polished, but it’s a weird little time capsule if you’re into retro oddities.