Each can be summoned to perform one of two special techniques. While the other Straw Hat Pirates are not playable, they can - under proper conditions - be accessed as support characters for Luffy. Items may be found out in the open, or in easily-broken crates. Luffy may encounter a variety of helpful items throughout the game. This bar is recharged whenever Luffy successfully hits an enemy different attacks supply different amounts of charge. In addition to a standard life bar (tied to a finite number of lives), Luffy carries a multi-tier 'power' bar to fuel his stronger attacks with.
Luffy begins with several of his trademark techniques, both short- and long-range as the game progresses, several more can be unlocked to supplement both combat and exploration.
The game is a conventional side-scrolling beat-'em-up, featuring Luffy as the sole playable character against a variety of enemies. Note how struck enemies can knock others back.