Defeat foes by hitting them
from above or behind

Collect aura to charge laser
and level up

A/D - move left/right
W - flap (hold to rise)
S - sink (double tap to divebomb)
SPACE - fire laser (when charged)

Slide finger - move up/down/left/right
Tap - single flap
Double Tap - dive bomb
Laser Button - fire laser (when charged)