So, Cuphead and Mugman want to store something, but find that their storage is filled to the brim. They then take out stuff in storage, when they find this old oil lamp they don’t remember seeing. Cuphead gives it a nice polish, thereby summoning a red genie who looks like Patrick Star. The genie then bellows, “It is I, Djimmi the Great! I shall grant you three wishes! What would your first one be?”.
Now you continue the plot!