OutZone is an awesome shoot them up.
The goal is simple, kill most of enemies possible without dying. You can die by enemy fire, or by falling in a hole or losing all your energy if you don’t take the energy supply there is on the road (the energy is constantly decreasing as the time running out!).
There is 2 mains weapons in the game:
+A laser gun which fires at high rate but you can only shoot in one direction at a time.
+A three way plasma gun which fires in 3 directions at the same time providing a good covering of an area.
You can also pick different power ups and super bonus:
+Super Burner: a directional, limited range super power weapon. Very destructive, but forces the player to move close to the enemies. It is thus risky to use against end-of level bosses.
+Super Ball: a terrific weapon! A destructive energy ball circles around the player, then rushes up the top of the screen, unaffected by walls. Your best choice in any situation!
+Energy Extend: extend the energy bar.
+Shield: protect the player from enemy fire.
+Speed UP: increase the speed of the player.
+1UP: an additional life.
Ported from original game from Toaplan(c) 1990
Enjoy this great game!