You have health of some kind? But if you just stay in place and the only thing you do is avoid saucers you still die after a few seconds. You can go off the screen edges and get lost forever. Running into saucers themselves seems to do no damage. While I applaud the devs attempt, this game is far too unfinished to be useful.

I do particularly like the UFO model in the green world, it looks very nice and professional, probably the greatest thing about the game.