Pirate's Ship #1, Ninja Camp, Pirate's Ship #2, Beach Cave, and Pirate's Ship #3. Once these levels are complete, the players go to the final level, the Wizard's Lair. In the arcade version the players are also given three opportunities to change the difficulty of the game, at the end of One-Eye's Ship level and after the first two Pirate's Ship levels, and have a chance to get an opportunity item in the Castle, Ninja Lair, and Beach Cave. However the levels are forcibly played in the written sequence above. In two-player mode, there are a few specific changes to how the game plays: except in the Pirate's Ship levels, players must duel at the end of each level to see which gets an invulnerability item. Each credit adds 50 health points to whichever player the credit was added for. Each level has a time limit that can be raised by obtaining hourglasses from killed enemies, but running out of time only results in slowly losing life and can be counteracted by buying additional credits. Each of the two player pirates behaves the same and face either left or right but can turn with the appropriate button. The sword button can be pressed to block and the joystick can be used in combination with the button to throw various attacks, thrusts and stabs. Red X's appear often denoting jumps and cranks, and white crosses can be dug up with the sword button to obtain various treasures. A parrot belonging to the pirate constantly flies with the players and recites roughly twelve different lines nonstop. The parrots only appear in the arcade version. Each of the three pirate ship levels has a Pirate Captain boss at the end of the level and a woman referred to in the game as a wench, while the other three levels have an Executioner (a heavy hitter), Monk (a fast attacker), and Medusa (a turret) boss for their respective stages. The Medusa's attacks can be avoided altogether by facing away and using back-stabs; if the players have chosen the easiest difficulty, an onscreen hint advises them not to look at Medusa. In the Wizard's Lair, these bosses are encountered again in order and the player who grabbed the invulnerability item on their respective stages immediately regains the use of that item for a duration. The wizard boss at the end will appear on one side