When the ground shakes, King Bulblin comes riding in from the left or right. The explosive he drops on the bridge is strong enough to blow it up.
After King Bulblin’s explosive goes off, the bridge may look damaged beyond repair. Never fear! Soon enough, a portal appears to fix it right up.
When King Bulblin is flinching after being attacked, fighters he rams into don’t get hurt. Sometimes a Bulblin appears, following along after King Bulblin. It doesn’t really do much, but you can attack and defeat it. You meanie.