Two characters named Drunk (from the original Bubble Bobble) follow the skull and take Judy away.

[3] There is also a two-player mode, implying that Bob has suffered the same events as Bub had, but the manual states that Judy is a friend of both.

[5] The backgrounds change every ten levels, possibly inspired by contemporary platform games such as Snow Bros. and Joe & Mac 2: Lost in the Tropics.

[1] In the NES version only, there are three bonus games which are located after the player defeats a boss, or through a certain door.

[7] The NES version can be difficult to find on the second hand market due to the low volume of production.