Play Utsurun Desu (Japan) Online
Start as a tiny fish dodging predators, then grow big enough to turn the tables—simple controls, but the underwater maze keeps you on your toes. Two-player mode turns into a frantic race to out-eat each other while avoiding trouble.

Utsurun Desu is one of those weird little NES games that somehow sticks with you. You're just a tiny fish at first—seriously, everything wants to eat you—but after chomping enough plankton and smaller fish, you start growing. Before long, you're the one giving chase, which feels oddly powerful for a game about pixelated sea life.
The controls are simple (just swim and eat), but the underwater maze keeps things unpredictable. Some fish move in patterns, others seem to hunt you personally, and the speed changes when you grow bigger. Two-player mode turns into hilarious chaos as you both fight over food while avoiding the bigger predators.
It's not deep, but there's something satisfying about outgrowing your bullies. The colors pop for an NES game, too—lots of blues and greens that make the ocean feel alive, even if it's trying to kill you.

Download Utsurun Desu (Japan) ROM
You can download this ROM to play Utsurun Desu (Japan) offline using an Nintendo (NES) emulator (Top Emulators).
*This ROM is provided for backup and educational purposes only.