High Quality Content by WIKIPEDIA articles! Sonic Labyrinth is a puzzle-come-platform game for the Sega Game Gear, released 17 November 1995 in Japan and in 1995 in North America and Europe. It is also playable on Sonic Adventure DX and in the PC, PlayStation 2 and Xbox editions of Sonic Mega Collection Plus. The game features isometric 3D gameplay similar to the SegaSonic the Hedgehog arcade game and Sonic 3D. Sonic and Dr. Eggman are the only characters in this game.