Fawflant

A Geranko is an enemy in Mario & Luigi: Bowser's Inside Story. In battle, they have two attacks. One (only if two Geranko are in battle) is attacking either Mario or Luigi at the same time, or attacking them both at the same time. This can be countered by jumping. The other attack is simply walking backwards into one of the brothers, so the brother will take damage if they are hit by the drill. This move can be countered by using the hammer.

In the overworld, they will start a battle by doing something similar to one of the attacks- Walking backwards with the drill in action.

Geranko appears to have the Japanese name for Fawful (Gerakobits) and the word ant in its name.