Goomba

Goomba is a passive enemy encountered in Double Drabobo, and the first passive enemy faced overall in Abobo's Big Adventure.

Origin
The Goomba hails from Super Mario Bros.. It can be defeated by jumping on them. It can also be defeated by shooting fire balls, Koopa Shells, by hitting a block from below if they are on top of it, or by touching it while under the influence of a Starman. The user manual included with the game identifies them as Little Goomba, but no other Goombas had been introduced at this time. Goombas in underground levels are colored blue, and in castle levels they are colored gray. Goombas flip between two sprites, giving them the appearance of walking. They also seem to lack a mouth.

In Abobo's Big Adventure
In Abobo's Big Adventure, Goombas appear as the first passive enemies to be fought in the entire game. They're fought in Double Drabobo, where they walk left and right without dealing damage. However, being very small, they can only be killed with a kick or a rage move.

Trivia

 * The Goomba's inability to deal damage is a joke about how weak the Goomba is in the mario games.