Still broken
As others have said, the collision detection is pretty bad on the blocks. This makes vertical bypasses obscene. Elsewhere, it was just ridiculously off. On the level that introduces flying snakes, I walked through the box to the left of the second pit and died. Level 20, on the third to last platform that is one block long, the space to the right of the platform above it. This stopped jumps coming from beneath and also threw down jumps coming in from the side, making it practically impossible.
Outside of the collision detection problems, it's a decent game. The difficulty curve goes up quite nicely, making it thrilling for any seasoned platform gamer.