Funny overworked frog that blasts everything and saves the world with a jacket. Twice. Or even thrice if you count the omake mode.
The game is more akin to a run-and-gun than a platformer game, despite my initial preconceptions. Do be warned that stages have plenty of harmful environments.

If you're going for all achievements keep Kuro Blaster at lvl 2 unless you really care about a secret. You'll thank me later