Many Monsters are competing in a championship. The player takes control of either a Purple Monster, Green Monster, Blue Monster, and Orange Monster. The object of the levels are to defeat all other monsters. At the end of each world, there is a boss that the player must kill. The game uses password, much to the dislike of players.
- Left: Move left
- Right: Move right
- Up: Go forward
- Down: Go downwards
- A: Kick/select
- B: Use items/Deselect
- Start: Pause
- Select: Nothing
- L & R: Move current items in possesion
As stated above, gameplay is to kill off all other monsters to win a championship. The most standered way to kill them off is to kick blocks at other monsters. The player can also use items. Be aware, however, as other monsters can do the same two things back to you. The player must kill them all, while avoiding different monsters. Although these monsters can be killed, they are completely optional and all they do is drop a food item that ups the players score.
After all levels in a world have been completed, there will be a boos level. These bosses have to be defeated by blocks- nothing else can kill them, as the only items available are guns that blast goop. When defeated, they majorly up the players score, and they move to the next level.
This game, like many others, features a password feature. The passwords were a random bunch of letters, not a word. The passwords features numbers and letters.