Crawler

The Crawler is a massive enemy in Kid Icarus: Uprising. It is quite possibly one of the strongest troops of the Underworld Army and looks like a semi-mechanical tank creature that has a weak spot located on its back. Beware, however, of the fact that it will explode once defeated.

It can be first encountered during The Return of Palutena, though only as an optional miniboss in the intensity gate, but many more are fought during later parts of the game.

Idol Description
"This living tank unit uses caterpillar treads to charge over any terrain. Covered in thick armor, Crawler is impervious against almost any attack except to a wide-open weak point on the creature's back: its heart."