βΈ OBJECTIVE
Destroy waves of invaders. Survive bosses every 5 waves. Chain kills for combo bonuses.
βΈ POWER-UPS
R Rapid Fire Β·
T Triple Shot Β·
S Shield Β·
B Bomb
L Laser (pierce) Β·
X 2Γ Score
βΈ ENEMIES
Grunts Β· Zigzaggers (erratic) Β· Shooters (fire often) Β· UFO (bonus) Β· Boss