This page has info taken from Sonic Retro.
SegaSonic Bros. is a cancelled and lost puzzle game set for release in 1992. The game was set for release in arcades. The game was cancelled due to the fact that it failed in it's test location. It was designed by Fukio Mitsuji, creator of Bubble Bobble.
The game featured 2 recolored versions of Sonic, one red and one yellow, as well as the normal blue Sonic.