There should be a 2 and 1 player categories.

The impossible 100% category though.
Completing all levels, collecting all badges, all attacks and defenses, all characters, all modes completed (including Pug mode), and maybe all achievements. Depending.

(Also, apparently no one plays it on mobile??? I mean, it's just single player basically, but still.)

@Hunt3r2795Hunt3r2795
Do you want a separate category for playing though the whole game co-op with a friend?
If so you can do a run of that, link me the youtube video and I'll see what I can do.

@Muted5ilenceMuted5ilence
Same goes for you if you want a category for 100%.