Really good game, the decision to remove the jump mechanic was risky but it paid off. The puzzles were very fun to figure out and maneuver around and I really think you made a clever game.
The only things I think would be needing of improvement are the mechanics for pushing the boulder up hills, as sometimes it takes forever, and the description as it says WASD to move instead of the arrow keys.
Other than that great game, was really fun to play!