I involuntarily vividly recall and play Bowser's theme from PM in my head whenever I start to read one of his posts and it always feels spectacularly right. He was a great choice of character to bring into the game, especially for Team Rocket purposes, and you play him like a fiddle.

I'm also fond of your angle playing a Pokemon Trainer!Riku as an in-universe equivalent of a competetive battling aficionado.