Bubble Man (DWN-011) is one of the eight Robot Masters from Mega Man 2. Dr. Wily designed him for underwater combat, as is apparent by Bubble Man's scuba diver appearance. Due to a design flaw, he cannot walk underwater, although his ability to leap and swim negates that necessity.
- Spear Gun - Bubble Man's arm cannon fires miniature spears.
- Bubble Lead - Bubble Man can bombard enemies with bubbles that are mixed with sulfuric acid. Mega Man can copy this ability.
- Sharp objects can burst Bubble Man's bubbles and seem to do the most damage to him. The Metal Blade is particularly effective against him, though Quick Boomerang and Crash Bomber are also useful.