If you watch your distance you can tell it is gradually speeding up instead of in clumps (i.e. the number in the back is what you go till it hits the next one).
This game is fun and ridiculously easy to break. My 3rd game i had just unlocked teh regen tank. i picked up powerups to max level. And then proceeded to get a X45 kill streak. Fun but if your good you can break the game.
Well just a clarification for those non-music non-gamer people. You attract more birds (which is your multiplier) when you jump on obstacles at the right time (you get a little patch of stars on the jump). You grab those and the music notes in time with the music. This means on the end of three notes or a single note. Meh. Rate up for noob clarification??
An amazing game that every one should play. As Rangaaa said i usually play my own music over the game but this had a very nice feel to the music. It kept you from playing it like an action game and kept it low key. Simple Design and wonderful story. Kinda reminded me of portal -ish.
 "Love"){kind=icon}
 "Runner"){kind=icon}
 "Sneaky Tanks"){kind=icon}
 "Champion"){kind=icon}
 "Take a Walk"){kind=icon}
 "Vox Populi, Vox Dei(a werewolf thriller)"){kind=icon}
 "Infectonator : World Dominator"){kind=icon}
 "Viricide"){kind=icon}
 "Starmageddon"){kind=icon}
 "Romance Maker"){kind=icon}
 "Hell Tour"){kind=icon}
 "Infectonator : Christmas Edition"){kind=icon}
 "Meat Boy"){kind=icon}
 "Infectonator!"){kind=icon}
 "Level Up!"){kind=icon}
 "Morningstar"){kind=icon}