I think that 100% category means get all the pose cards for every character, unlock the 4 elefants and beat the default high score and beat the high score from the "mini games" like tower ping pong. And... IDK if you must play the multiplayer games modes (Alone) like the balloon pop.

I guess if you do EVERYTHING there must appear a letter down in the whole town saying something like "you do everything in the game" (the last thing should be the pose cards (I say it for experience)).

And I agree With the any% no reset category (or cutscene% maybe).

Regards.

And have a Waaahhnderful day.