Checkpoint

Antichambers are the room between two shutters. They almost always have checkpoints. Some bosses don't have antichambers, such as Yellow Devil MK-II. Mega Man's antichambers are longer and include enemies, specifically the Adhering Suzy, Met, Screwdriver, and Pepe. Some mini-bosses have antichambers, like Mother Mukamukade and Move Cannon. Move Cannon's antichamber contains a CD, specifically Napalm Man's.