Wall Clinger

Wall Clinger is a stage enemy that appears in levels with ceilings or walls. Its purpose is self-explanatory, clinging to walls.

Killing them will get rid of them permanently, as they don't respawn.

Appearance
Wall Clingers appear as a metallic dome with three cannons on the top of it.

Tips

 * Look for the odd shape it has to avoid being killed by them.
 * Using Slaughter EX is a great way to detect difficult-to-find individuals, alongside the heavy damage it has, killing them instantly in modes below Master.