Took me a little while to understand how to actually play the game, i didn't realize i was in the game when i pressed the portal till i tried to move. Also shooting the enemies without taking a single bit of damage was nearly impossible since turning around to shoot was almost always a guaranteed hit for the enemy so i decided to run from the enemy every time i saw them! But other than that it was fun to fly around and look for the ore! Perhaps add a small indicator pointing to a rock if its close enough? Sound would be nice as well!