I think the game would be much better with a bit more animations - for instance, some trail effect when dashing and dying animations. The rope wasn't particularly intuitive to use, it would have been ok just to make you go up when you press the up arrow. Also I found a bit confusing that the dash was made in the direction of the mouse, I personally would have just set the direction to wherever the player was already going. Furthermore, it was a bit too floaty.