Star Soldier

Extra lives:
You begin with two extra lives. You earn another life at 50,000, 200,000 and 500,000 points.

Power-ups:
Shoot the tiles with a large P to release a power-up capsule, then collect it.
1st power-up: Rapid fire and speed-up.
2nd power-up: Your ship changes and fires two bullets up and one bullet down.
3rd power-up: Shields and five-direction fire.
Once your shields are active, every power-up you collect performs an "enemy crash": all enemies on the screen explode.
The first hit after you get shields returns your weapon to two up, one down. The 5th hit removes the shields. Collecting a power-up without shields restores the shields and the five-direction fire.

Hide under the landscape:
Your ship sometimes slips beneath the landscape. While behind it you cannot be hit, but you cannot hit the enemies either. Return to open space to attack again.

80,000 point bonus:
Shortly before most boss battles there are two large eyeball tiles on either side of the screen. Destroying one after its eyelid has closed (24 shots) gives 2,000 points. Destroy both eyes at the same time with the five-direction fire to get an 80,000 point bonus.

Tile points:
Star and snake tiles: 100 points (one shot).
Dragon tiles: 200 points. Phoenix tiles: 300 points.
Skull tiles: 400 points. They need 3-9 shots depending on their state.