Backlash is a 3D shooter created by the British studio Novagen for the Atari ST in 1987 and ported to Amiga in 1988.
The game was programmed by Paul Woakes and designed by Bruce Jordan, the founders of the company. Novagen (and Woakes) are probably more famous for the Mercenary series, early examples of 3D games that were very appreciated on the Commodore 64.
Backlash is an endless shooter; you can move in all directions in this 3D (but flat) environment. You have to avoid obstacles and enemy fires, and try to kill as many aliens as possible.
Technically impressive, considering that this was made in 1987, Backlash's main problem is its lack of depth. But if you are looking for some minutes of retro-frantic action, this is the game for you.