Gyakuten Puzzle Irekaeru Gyakuten (逆転パズル いれかえる逆転, lit. "Turnabout Puzzle Substitution Turnabout") is a competitive puzzle game for cellphones published by Capcom, based on the Ace Attorney series. The game is turn-based, where players compete to get points in order to push the gauge to their side (either "Guilty" or "Not Guilty"). Each player can gain and use items as well, such as a magatama, the Blue Badger, a bottle of luminol fluid, an attorney's badge, and a prosecutor's badge.