Yoshi Topsy-Turvy is a Game Boy Advance game featuring Yoshi in a unique gameplay style. The title suggests the game probably involves unconventional or upside-down level design.  TrashMan's involvement as the developer adds context, although further information is needed on their work and the game itself.  The unique mechanics of this version likely differentiate it from other Yoshi titles.

Yoshi Topsy-Turvy (U)(TrashMan)

Yoshi (SMK)