Je vais appeler "costume" un ensemble alternatif d'animations pour un personnage qui ne change pas fondamentalement le comportement du personnage. Ce sera le cas par exemple de Mario quand il grandit. Bien sûr, mario-grand est capable de faire des choses que petit-mario ne sait pas faire, mais les animations modifiées vont bien au-delà des nouveaux mouvements. Devenir Mario-tanooki, c'est enfiler un costume. Devenir Mario-feu ou Mario-Marteaux aussi. Devenir Mario-Grenouille (SMB3) change fondamentalement l'ensemble des mouvements du personnage, la physique des déplacements et ne peut clairement pas être assimilé à un costume comme défini plus haut.

Some heroes use costumes. When they have some specific powers, their apparence is changed. Their set of moves doesn't fundamentally change -- it's a costume, not a mutation, but they gained an important additional move that may change strategic choices at some points. Yes, exactly like the fact that Mario is currently able to shoot fireballs, just in case the last platforming section made you forget about it. Grabbing the tanooki suit is a costume. Same for the Hammer Bros. suit. The Frog suit in SMB3, however, is more like a mutation. Many basic moves of Mario like running and jumping are no longer available when you're a frog, and replaced by another set of moves. This is truly a distinct part of Super Mario's state machine, while the Fire Flower merely grant you to access one conditional state (throwing fir...