Zaurus F1 is a Mechanical Beast from the crossover film Mazinger Z vs Devilman.
Zaurus F1 is seen in the films opening were it blasts through the side of a mountain with its electrical beams, it met up with the golden Mechanical Beast Buragga S1 and they go on a rampage in the direction of the PhotonPower Laboratory. Koji Kabuto and Sayaka Yumi gear up and get into their respective mechs and head off to combat them. They square off against the beasts but are knocked down by Buragga S1's axe, Zaurus F1 then starts to pummel the ground with its extendable arms trying to hit Mazinger whilst Aphrodite A battle off against Buragga S1. Its arm coils around Mazingers arm but he uses the Rocket Punch smashing through Zaurus F1's chest, then does a loop and goes through the beasts neck, decapitating the mech. However the head was still alive and propelled itself over the Mazinger and crunched down upon its head and started to shock the mech with its electrical beams, almost blinding Koji, however he then destroys the head by firing the Mazingers eye beams.