Bubble Memories: The Story of Bubble Bobble 3 Cheat Codes for Arcade

Super Game
Left, Start, Bubble, jump, up, down, start, right. You get the second set of levels when this code is used. It does nothing special on a machine with Extra Mode enabled. I recommend avoiding this code until you have beaten the game in normal mode, so you don't miss part of the story.

Power Up
up, right, left, down, up, right, left, down. Doing two clockwise cirles causes Bub and bob to have permanent shoes, blue gum, and yellow gum.