Wikipedia
Bug!
Bug! is a 3D rendered platform/adventure video game developed by Realtime Associates for the Sega Saturn. Released in 1995 as a launch game for the Saturn in North America, it was one of the earliest 3D platform games. It was later localized to Europe and Japan, then ported to Windows 3.x and Windows 95 on 31 August 1996 by Beam Software, on one CD that contains both versions of the game.
A sequel was released in 1996, Bug Too!