http://www.geocities.jp/flashgame_zone/zero.htm

Aim with your mouse, fire with the spacebar. Not really that hard (I won it), but strangely fun...

ya its alot like this one:
http://www.albinoblacksheep.com/flash/space

aim and fire with mouse

Total score: 98077
Your rank: Level 20th

Is there only one level or did I not play the whole game?