PokéPark Resource

[Random Talking Bush]

I need to play that game and see, but WP is probably an abbreviation for the ingame version that's got an instrument.

The "WP" varies between Pokémon. Munchlax, Watchog, Pansear, Panpour, and Cinccino all have models with the cupcakes. I don't think it's entirely necessary to port both variants of the models (Darkrai is the only exception, as his "Boss" model is higher-poly), just get the cupcake from one of them and submit that separately.