When released, he wanders around, placing bombs and destroying Soft Blocks and enemies. Like the other caged characters, he has one Bomb, two Fire, and the Remote Bomb ability. He is worth 5,000 points.
When playing as Rubber Bomber in Battle Mode, holding down on the joystick and then pressing the B Button will transform him into a slime. In this mode, he can pass through Soft Blocks. Also, thrown bombs will bounce over him to no effect. However, he cannot place, kick, or throw bombs, and he also cannot pick up any items.
Pressing down and B while Rubber Bomber is in slime form will change him back to his original form.
Rubber Bomber's special ability is completely disabled in Stage 2.