Yeah, I was getting motion sick too. I think it has something to do with the lack of a focal point to look at when you're not near any surfaces. I remember reading Mirror's Edge had the same problem, which is why they put a little dot in the middle of the screen for that game.
Ugh, I feel like throwing up. >.< Haha
There was a glitch in the tutorial.
I went to the pause menu and clicked restart and it just closed the menu. I then tried to go to the map, and it also just closed the menu. Deciding to just go with it, I waited for the, now, second spawn.
Beetles kept on spawning a long the left side entrance. After about thirty, I just had to refresh to restart the game.
I found a glitch.
Some how I managed to skip wave 30, and continue to press the Wave button and increase the wave over 30. Of course nothing happens, since it was supposed to stop at 30.
I think it had something to do with the fact I switched the sound off, pressed Q, then W. In the order, but I'm not sure what exactly I did to cause it. Wave 30 didn't spawn either.