Empty flies

Hollow Fly is an action-adventure game where you must collect all the keys in a level to open the gate and move on to the next level. You will find many enemies and dangers on your way to the light. You will face 3 maze-like worlds. You can defeat your enemies with your powerful ultrasonic beam. Collect different power-ups to increase your speed, firepower or health, but if you lose a life, you also lose all your power-ups.