4/5. No upgrades drops it to 4, but it's amazing! In fact, if I could rate this 4.999999999999999999999, I would. However, it's not perfect, of course. Few games get the coveted rating of 5, or even 4.5. An amazing run game with a wide array of achievements, power-ups and shark punching. The only improvement in number 4 would be upgrades. Oh, and a lower sky penalty.
@ xBerzerk: Well, if he is level 4 or higher, he will skip to the level 4 if you got it, unless he is level 7 or higher; then he will skip to level 7, and so on.
"Sir, I saw the assassin! What should we do?" "Okay, just go to the walls, run away from bloody footprints and stare at boxes. Got me? "Yes sir." "And if you see him, run in random directions. Whenever you see a manhill, turn around, and run straight for wherever the assassin wouldn't be."
This game is slower than a dude with 2 broken legs and 1 broken arm trying to run 500 meters while pulling a space shuttle, then finding the extinct Canadian dingo bird by constructing a time machine to prove to the world that dingo birds had backward-facing heads.