Help with a name!


I'm trying to find out the name of an old Japanese "comical action game" (think Bubble Bobble, Snow Bros, etc.) for Game Gear.

You play as a kid. Your weapon is a hammer. The way to kill enemies is to hit the ground, creating a hole where the bad guy will be trapped, so you can finish him with your hammer.
There's some levels where the enemies are all sorts of evil vegetables. Then there are levels of ice, where you'll find penguins among the bad guys.

The bosses are usually magnified versions of one of the creatures you battled earlier, eg. a big penguin in the icy stages.

Does anybody remember that one?