How Jack-6 joined the Tourney
Jane successfully restored Jack-5's memory. It was not long until the Mishima Zaibatsu decided to make their own "Jack" model, which was ten times the power of Jack-5. The new G Corporation leader, Kazuya Mishima, also demanded a new "Jack" model, eventually creating Jack-6. They decided to put it into the Smash Bros. Tourney to destroy the Mishima Zaibatsu.
Piston Gun (Neutral)
Jack performs a rapid-fire punch attack using both of his fists.
Sliding Attack (Side)
Jack performs a sliding attack and says "ATTACK!".
Giant Foot Stomp (Up)
Jack performs a high jump and creates a shockwave when he lands. The special attack button can be pressed up to four times to make Jack jump further.
Jack sweeps the stage's floor with his fist.
Dark Greeting (Hyper Smash)
Jack says "YOU CAN'T BEAT ME!" and he summons a gas that does massive damage to anyone who touches it.
Giant Rush (Final Smash)
Jack punches opponent with a Gigaton Punch, while also grabbing the opponent to throw him/her in the air and juggles them with an anti-air Piston Gun, then finishes with another Gigaton Punch.
- Jack performs a backfist, then he says "MISSION COMPLETE." while he flails his arms in the air.
- Jack performs a backfist, then he says "HULK SMASH MEANS NOTHING TO THE JACKS." while he flails his arms in the air. (Hulk victories only)
- Jack beats on chest like a gorilla, complete with the Tarzan yell, then falls over while continuing to beat on his chest and saying "THIS ISN'T RIGHT...".
- Jack stands straight, flexes his arms above his head, then flexes his bicep, all while saying "THAT IS WHY THEY CALL ME JACK SIX.".
- Jack-6 is one of the two Jack robots to be playable in Super Smash Bros. Tourney. The other Jack robot is Prototype Jack.
- Jack-6's voice, as well as Prototype Jack's voice, is JACK-X's voice from Street Fighter X Tekken.
- Jack-6 was originally going to be replaced with JACK-X in the sequel, but JACK-X was cut from the final release of the sequel and was replaced with Jack-6.
- Jack-6's rival in Super Smash Bros. Tourney is the princess of the Mushroom Kingdom, otherwise known as Princess Peach. In Tourney 2, his rival is Kaijin no Soki.