Wario Land II is an action-packed platformer where you play as Wario, seeking revenge on his arch-nemesis after he stole their treasure in the previous game. With the help of special agents from the Black Sugar Gang, Wario must clean up the mess left behind by the gang and reclaim what's rightfully his.
As Wario, you'll encounter various obstacles and enemies, including those that turn him into different versions of himself. For example, if hit by a bee, he'll puff up into a giant ball of air and float to the top of the level. However, when hit by a sharp object, he'll return to normal. Each transformation comes with its own advantages and disadvantages, requiring you to use your wits and reflexes to progress through the levels.