Honestly it depends on the computer. Mine lags too much, but ive played other Flood Runner games, and enjoyed them
Very nice game you made there, but I think that the achievements are a bit too hard. Defeat t-rex 50 times for silver? As far as I remember, yeaster day it was "only" 40, bu still I think it's more of a gold chalenge than the gold one...
Keep in mind, that by avarage, a single run takes about 3 to 10 minutes. So in half an hour you will be able to do from 10 to 3 runs, depending on your level and skill. And It is really hard to collect 100 powerups or beat t-rex 50 times... mayby change it a little?
Also, the medpak is realy realy rare. Is it how it is supposed to be?
realy fun but i hate how it flings a meteor at u randomely because it always makes me lose