Thread:AHI-3000/@comment-31638612-20170414061510/@comment-31638612-20170414183652

Here's the thing:

Every character in the game has 5 costumes. The 2nd and 3rd costumes are merely reskins. The 1st costume is the character's normal look. 4th is their dark costume, and 5th is either a form or a special set of clothes they underwent or put on (or off even) sometime during the show's run (Some characters turn into others entirely. The one exception to all these is Vilgax who uses a Mythology Gag). This is proven with many characters such as Kevin Levin (Colossus Kevin from Alien Force Season 3), Flapjack (Flap's Sardine costume from "Cammie Island") and the Powerpuff Girls who turn into the Rowdyruff Boys. I'm a huge nerd, I know.

As you can see, that's Aku's 5th costume, so it must be some form he was once seen in somewhere.

Please put some more thought into this.