Autobomb

An Autobomb is an enemy from Yume Koujou Doki Doki Panic and its international counterpart, Super Mario Bros 2. These cannons, that shoot projectiles, are guided by a Shy Guy; the Shy Guy utilizers can be thrown off the weapon. Mario and his friends can board the unguided cannon, which can ride across hazardous spikes.

Trivia

 * The "M" on any Autobomb cannon stands for Mamu, the Japanese name for Wart, the antagonist.