Hades Paradox Cup
The Hades Paradox Cup (裏ハデスカップ, Ura Hadesu Kappu?) is one of the four cups that can be entered by talking to Hades in his chamber in Kingdom Hearts II, and is the longest and hardest in the game. The tournament consists of fifty matches with the cup's rules changing every ten matches. A boss is fought on every tenth match and the final boss is Hades in Berserk mode. Upon winning the cup, the Hades Cup Trophy (ハデスカップトロフィー, Hadesu Kappu Torofī?) is received.