Noitu Love/YMMV


 * Ensemble Darkhorse: O2-Joy is the most popular Darn Army member, thanks to his unique design and creative boss fights. It helps that he's the only non-Rilo member to be an end-stage boss in both games.
 * Genius Bonus: In the first game, O2-Joy's theme music is a minor-key version of the "Ode to Joy".
 * Surprisingly Improved Sequel: Aside from well-designed and fun boss battles (especially the last one), the first game is a decent if unremarkable side scroller. The Second game is a top notch Action Game with incredible pace.