Eliminator was a color vector game created by Sega, released in 1981. This space shooter game was similar to Star Castle only the target object could move around the board. Players pilot a space ship around the space playfield and must destroy alien drones, dodge other player's ships and evade and destroy the Eliminator, the huge asteroid base. Destroying opponents is not done with straight shots however. The players fire causes the target that is struck (with the exception of the Eliminator itself) to rebound and careen off in another direction.
Sega Wiki