The player can play as Sir SpongeBob, Sir Patrick, Squidly (Medieval Squidward), or the Dark Knight (Medieval Sandy). Spikes do not hurt SpongeBob or Sandy and electricity does not hurt Patrick or Squidward. The player plays by bumping into foes while the player is higher than them. When the foe gets hit enough, they will be defeated. Likewise, if the player gets hit while the enemy is higher than them, the player loses some health. If the player loses all their health, then the player loses a life. The Dragon Jellyfish is also flying around. Touching it results in the character instantly being defeated. The player can also pick up starfish for points and jellyfish to activate the player's character's special power. If the player does not pick up the bonuses more enemies appear. Everybody has a unique special ability. SpongeBob gains temporary invincibility, Patrick has a ranged water attack, Squidward freezes time with his music, and Sandy has a powerful attack that instantly defeats any enemy she comes in contact with, including the Dragon Jellyfish (which gives a lot of points for being defeated). At the end of every round, a jousting match will take place in which SpongeBob, Patrick, Squidward, and Sandy will battle each other. If you win you gain an extra life. There is also a 2 player mode. The game ends when the player(s) lose(s) all their lives.