Keyboard Arrows -> Move Keyboard Spacebar -> Shoot
Joystick/Gamepad -> Move A/B/X/Y buttons -> Shoot (only one kind of shot for every button)
A particular enemy ship, once destroyed, will drop a random colour power up.
RED -> +10 Points to Spaceship Health (it can never go over the initial 100)
BLUE -> +10 Points to Speed (Initially 70, no max limit)
YELLOW -> +100 Laser Energy. Laser will shoot a double (or triple if taken twice) bullet for 100 times.
CYAN -> +100 Missiles. Shot together with laser, every shot will decrease the Missile ammo left.
PURPLE -> +100 Fire Bullets. Shot together with laser, every shot will decrease the Fire ammo left.
LASER - Basic weapon that you will never lose, it deal 1 damage, it can be upgraded with Power Up to shoot 2 or 3 salvos at time.
FIRE BULLET - You can gain this weapon with a Power Up and it deals 2 damage.
MISSILE - You can gain this weapon with a Power Up and it deals 3 damage.
+10 -> Destroying Purple/C-shape enemy
+20 -> Destroying White Enemy
+20 -> Destroying Yellow/Fish-shape enemy
+20 -> Destroying Grey/Trimaran-shape enemy
+20 -> Destroying Grey/Shield-shape enemy
+30 -> Destroying Blue Enemy
+50 -> Destroying Purple/Tentacle-shape Enemy
+50 -> Destroying Green Enemy
+50 -> Destroying Yellow/Ring-shape enemy (it also carries a Power Up, if collected you get additional points)
+100 -> Collecting a Power Up