This is the 3.14th release of Survive, the third being a version of the game formatted for the Archos 5 with touchscreen controls (pm me if you want it). In this version you can now chose between 3 levels of difficulty, ranging from slightly easier than the original version, to... well... im not sure what to compare it to, but level 3 makes it the hardest flash game I've ever made. There are also 3 new enemies: A laser that moves back and forth across the ceiling, a giant eyeball-type thing that is really crazy and full of lasers and stuff, and a sloped wall of spikes forcing you to one side. It does save your high score, but it doesn't save your score for each level, just one score. That feature will come later, in v3.14159 or something...

Edit v3.141:
Added progress bar and game over menu