I really liked the extendy/stretchy bit on the arm, it had a really nice feel to it when climbing. I'm not sure if it's intentional, but when you hit the ground and hear the sound effect but it doesn't attach causes you curse the heavens. I kept feeling like I wanted higher mouse sensitivity in the game, as if I didn't have enough room on the screen for the mouse movements to get the movement I desired. I almost gave up at the jump section (the first area with unclimbable wall), but I persevered and made it past to the boost. Nice job.