Thunder Burner

You are a pilot of some robot/spacejet transformer on some deserted planet
full of cacti and enemy ships. You may turn left/right at the angle of 45
degrees, move at the angle of 45 degrees, accelerate/decelerate speed of your
moving, shoot, and metamorphose into a spacejet at will. During 12 levels of
gameplay enemies fly towards you, and you should shoot them or avoid them,
because each meeting with the enemy means decreasing the number of instances
of your transformer. You’ll also need to collect spheres to maintain your fuel
levels. When all instances of your spacejet will be lost you may be enlisted
in the High Score Table.