www.longplays.org Played by: SCHLAUCHI The game is endless, so I let myself get killed after reaching 500000 points! - Disclaimer: Most videos by World of Longplays use SaveStates!
Back then, there were some space shooter with perspective effect, like Gyruss (Konami, 1983), Repulse (SEGA, 1985) and Space Harrier (SEGA, 1985) itself. Mirax was released in 1985 by Current Technology Inc., a Taipei based company; there are no further products coming from them, so I guess they just sold the company to someone else or change their name.
RECUERDO DE MI JUVENTUD A LOS 15 AÑOS ME ESCAPABA DE LA ESCUELA PARA IR ALAS SALAS DE MÁQUINAS A JUGAR ESTE JUEGO YA ANPASADO 35 AÑOS Y LO RECUERDO COMO SI FUERA AYER
Description is wrong, should be 500,000 points not 50,000. Also, some of the BG music sounds familiar - two of the tunes are same or similar to Flight of the Bumblebee and the Jaws theme.