Nano Breaker (ナノブレイカー Nano Bureikā?) is an action video game developed and published by Konami for the PlayStation 2. It was released in Japan on January 27, 2005, in North America on February 15, 2005, and in PAL regions on February 18, 2005.

Jaguar from Neo Contra and Contra ReBirth appears as a hidden character. He can be unlocked once the player finishes the game with Jake and then with Keith.