Zero Wing/Gameplay

Controls

 * D-Pad -> Steer your spacecraft
 * A button -> Fire weapon
 * B button -> Tractor Beam

The tractor beam lets you grab small enemies and use them as a shield.

Power ups

 * Green - Homing Shot
 * Blue - Laser Shot
 * Red - Spread Shot
 * Blue Insignia - Speed Up Unit, increases speed, and when maxed out grants extra lives
 * Bomb - looks similar to the "option" powerup. Can be released, or act as a front-facing shield. In either case, when touched by an enemy/terrain it will explode.

Collect 3 power ups to upgrade your weapon to maximum. The first red power up collected will give you two "option" pods that will increase your firing range (automatic spread shot) and also act as a shield for shots above and below you.

Once you have collected the option pods, collecting other colours of power ups will upgrade the option pods, and the main weapon.

If you collect a different coloured powerup when the weapon is maxed out, you will retain the power up, and switch to the other weapon type at maximum level.