Well, in level 12 I don't believe anything spawns right in the middle. And in all the later levels, you pretty much have to be moving the entire time anyways.
The appears to run quite differently on slower computers... On my slower computer, I could never reach even a combo of 60 (without hitting any reds), while on this one, which is faster, I reached 70, despite hitting a red somewhat early on, on one of my first tries. Also, the white bar that the shapes come out of doesn't seem to move as far around the screen on my other, slower computer by the end of the song. It only goes around once, whereas on this one it goes around about one and a half times.
A little bit too luck based in my opinion... sometimes you'll hit no reds and get all the yellows, but end up with a combo of only like 30-40, while other times you may get up to 60...
Do I have to finish the level for my doomsurf to be recorded as a milestone (I had 63 seconds, but accidentally lost the level later on). I have a highscore on the Kongregate scores list, but it doesn't look like I received the milestone.
It's annoying watching all these people insult the game because of their own problems... either they read something wrong, just sucked at it, didn't like the game's genre, or something of the sort, and rate it low because of that...
spacepoop, no you cannot level up before you go down a floor. You level each time you go down a floor regardless of whether you have killed all the enemies or not.
AioriaRox, no it does not end at level 9 with the Corruptor. The story line ends, but you can continue playing on for infinite levels if you load the game again.
Shadowlordz, don't rate it down just because you completely suck at it... It's obvious almost everyone else isn't having trouble with beating level 10, so just because you can't doesn't mean there's anything wrong with the game. Also, the levels don't always get harder as you advance, so it's not like level 74 and other high level are THAT much harder than most of the other levels.