New to the features is the hot system which affects the vulnerability of character while they attack. For example, a move with jumping properties, such as a hop-kick, will be completely invulnerable during most of its animation time to all of an opponent's low attacks.[3] It also retains its wall juggling concept from Tekken 4, but the element is effectively more difficult to abuse and easier to defend against. Tekken 5 also allows players to customize their fighter for the first time, allowing them to change the colors of their outfits, buy additional costumes, and equip them with items by using money gained from playing the Story, Survival, Time Attack, the side-story Devil Within, and Arcade Battle modes.[4]