Play Alexkidd Online
Jump, punch blocks, collect items, and battle bosses in rock-paper-scissors as you help Alex Kidd rescue his brother from Janken the Great in this classic platformer.
Alex Kidd in Miracle World came out in 1986 for the Sega Master System, though many first played it later through MAME or other emulators. It was developed and published by Sega, a straightforward platformer from a time when console mascots were just starting to define themselves. The game felt like a natural part of that era's library, not trying to reinvent the wheel but offering a solid, if quirky, adventure.
You control Alex Kidd, a boy with large ears who punches through blocks to find money, vehicles, or items that restore his health. The main goal is to rescue your brother from the evil Janken the Great by traversing a series of side-scrolling levels filled with enemies like flying men and hopping monsters. Signature mechanics include breaking specific rocks to reveal temporary transportation like a helicopter or motorbike, and facing bosses in sudden, high-stakes games of rock-paper-scissors that determine if you proceed or lose a life. The pacing is brisk, and the difficulty can be unforgiving, with instant death from spikes or crushing obstacles. Playing it feels like a mix of careful platforming and embracing the unexpected chaos that comes from each broken block.
Download Alexkidd ROM
You can download this ROM to play Alexkidd offline using an MAME emulator (Top Emulators).
*This ROM is provided for backup and educational purposes only.









