The only weapon at your disposal is an air pump, which you can use to inflate the monsters until they explode. However, if you stop inflating them, they will revert back to their normal state. Additionally, rocks are scattered throughout the earth, allowing you to squash them for points. If left undisturbed for several seconds, Pooka and Fygar will transform into ghosts, becoming invincible and able to walk through the earth.
Throughout your journey, vegetables will occasionally appear in the center of the screen, awarding you with points. Your ultimate objective is to navigate through the earth, avoiding or eliminating the monsters, while collecting these valuable points.