A thumper bumper is a dark green ball with a smaller light green circle in its center. Eight small dark green triangles surround the inner circle. When touching a bumper, it will flash orange.
When the new born sun touches a thumper bumper, it will bounce off the bumper on an angle. The bumper will then make a sound and flash orange. The player must be careful not to lose control of the new born sun when navigating around bumpers, as it is easy for the new born sun to bounce off a bumper into an enemy or hazard.