The following are fighting in the Hyperbolic Time Chamber, the fight is until submission or incapacitation.
Match 1: Hisoka vs General Tao(Pre Cyborg)
Match 2: Meruem vs Piccolo Jr(Pre Z)
Match 3: Chrollo vs. General Blue
Match 4: Illumi vs Tien(Pre-Z)
Bonus: Phantom Troupe(Only Currently Alive Members) vs Kid Goku, Kid Krillin, Chi Chi,Master Roshi, Yajirobe, Ox King, Yamcha, Grandpa Gohan, and Mr. Popo