The 'Bricks' part of the title is really the defining one here. Make no mistake just because the protagonist is a clothed cartoon bunny wielding a baseball bat: this is still Breakout. So this bug (or another weird creature) throws a ball against the wall and Bunny (I guess that's his first name) has to hit it after it bounces off, propelling it back into the wall, where it again bounces back from, destroying the hit brick in the process. Rinse and repeat until all bricks have been cleared.