The Coleco Telstar Arcade is triangular shaped, with different controls on each side. The first side holds two hardwired knobs; the second holds a light pistol; the third side holds a steering wheel.
There were only four triangular carts made for this machine.

Telestar was a series of video game models made by Coleco which preceded the Colecovision by 10+ years. The Telestar series included a dedicated Pong Clone, a Dedicated Pong clone with a light gun (the Telestar Ranger) and a programmable unit the Telestar Arcade a triangular until with a steering wheel, light gun, and duel paddle controls that used triangular game cartridges.

Coleco derived it name from the Connecticut Leather Company which first started making plastic pools, they are most famous for the Cabbage Patch Doll.