Easily one of the greatest video games I've ever played, along this soundtrack's quality on point for GBA standards. A bit sad they won't release another game, but it was quite the best way to finish a franchise like Mother, in my opinion.
Fun fact: the track "Voice 1101" is actually someone saying "ok desu ka", which translates to "Is it okay?" or "Is that okay?" This is the voice line that plays after you have successfully named a character in the game.
It's actually called "Unfounded Revenge", so that may be a translation error. If you're looking for the Smash Bros. song, "Unfounded Revenge/Smashing Song of Praise", that'd be under the Smash Bros. Anthology - Mother/Earthbound.