Yes it is. There's a room that has all tha characters trophies in it an' as you pick each one off each time ya go back more an' more trophies disappear. Tha door ta that room is in tha swamp area with tha leaves with wind blowin' on 'em (this area also has DK music). It's also tha small room in tha middle of tha map in tha center an' its marked by a large blue/pinkish arrow pointin' towards it. Once ya beat all tha characters there's like an invisible pathway that appears (just go throughout tha room pressin' up if ya can't find it) that leads to tha battle with Tabuu.
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