DC X DBZ: Training Room

What is a DC X DBZ: Training Room?
DC X DBZ: Training Rooms are mini-games found in LittleBigPlanet2 ONLY. At the moment. Each room is fitted with a soundtrack that lasts longer than an hour and a half. Then it restarts. Players are allowed to train by themselves or with friends for an unlimited amount of time. Unless the characters' HP hits 0. Players can summon Punching Bags, a floating block to destroy, a row of sackbots to shoot at, an intelligent AI to fight and train with, and practice damage on Sparring Targets that are in the area. Any damage done by players will be recorded. The color of the room varies between moralities of the character sets. Each Training Room also comes with hidden challenges called feats which give you items if you complete them.

DC X DBZ: Training Room (DBZ Heroes)
The Training Room for the DBZ Heroes is a version that has any hero from DBZ as a character to train with. It currently contains, Goku, Teen Gohan, Vegeta, and Future Trunks.

Feats:
 * 1) Trainee - Transform at least once using any character
 * 2) Blackbelt - Perform at least 3 Ultras using any character
 * 3) Expertise - Defeat 5 lvl. 4 AI

 Tier List:__________________________________________ 

Order in which characters are listed under a tier does not matter. What tier they're in does matter however.

 X-Tier: 

Mystic Teen Gohan

 S-Tier: 

SSJ3 Goku

SSJ2 Trunks

SSJ2 Vegeta

SSJ2 Teen Gohan

Base Form Trunks

 A-Tier: 

SSJ2 1/2 Teen Gohan

SSJ Vegeta

SSJ Goku

SSJ2 Goku

 B-Tier: 

SSJ Trunks

SSJ Teen Gohan

Base Form Vegeta

Lvl. 4 AI (Not playable character)

 C-Tier: 

Base Form Goku

 D-Tier: 

Base Form Teen Gohan