Red Plasma was a shooting game with robots that was in development by Sony Computer Entertainment for the original Playstation. A single screenshot, probably from a target render or a tech demo, was found by Celine on Console Plus magazine #34.
Lost Level’s user Deadguy2322 has identified how the mech design is very akin to Polyphony Digital’s Omega Boost released on Playstation four years after that initial target render was shown.
Images: