But, as many people said, the link at the bottom right a problem. Luckily, for me, I have firefox and I set it to open tabs so it didn't really affect me other than lag.
It was good at first, until the game sort've ended after I got the dual guns. I got really, really high up, no weapon upgrades, and I was basically shooting the oncoming clones without effort of even moving.
It was a fair game, great idea; however, it could've been better with more upgrades and a height metre that didn't run out of the space once you were past 60 or something.