Accepting the Ice Floors and 40 Souls Locks Attack Speed part of the contract causes you to jump higher without incrementing your jump stat. This makes the third room impossible to get through, as you hit your head on the ceiling and then plummet like a rock. For n easy view of the difference, in the first room, the player jump is just below torch 1 without the ice, but perfectly sets player to same as the torch with ice....

And about how long is the game? Thanks