Alternate theory for Special Attack is that the alien forehand-device is the special attack discharge vehicle (since she pounds the ground) and the hexagon device on the back is the charger?
Or the hexagon device charges the jet pack; with the player having a jet pack bar that depletes upon uses (limited).
Shotgun has spread shot and slow charged shot firing modes. Also continuous beam firing mode for close rage?
Assault rifle has red laser alternate firing mode?
Alien sword (lightsaber like) for upclose combat.