I've added powerups (they're only on the '1 on 1 Dogfight' game mode as I'm making sure they're working before I make them global.)
LvLx5 - Multiplies any level up coin you collect
TriShot - Shoot three bullets in a spread
Miniature Plane - Shrinks your plane, (for unknown reasons, this amuses me more than it should.)
X5 - Instantly multiply your score
Target - Destroy all missiles that are on screen, or are spawned during the time the powerup is active.