Hagane no Ha

Hagane no Ki (Tetsu no Tsubasa) is an action RPG developed by Konami and released on Nintendo DS on January 19, 2006. Adapted from the manga of the same name, players take on Shou, who wields the mysterious rainbow feathers and must find four other holders to save the world from destruction. Special attacks require drawing specific symbols on the touchscreen within a time limit, and puzzle-solving in dungeons uses the stylus on the bottom screen. A wide array of collectibles like fish and insects can be acquired by tapping sparkles, adding depth for completionists.