Good game, few little changes I would make to be more user friendly, like in SQUARED when you put the wrong color in and go to change it you first have to change to that color to erase it and then put the right color in. Minor, but it would be way smoother to not have to do this
to beat level 13, throw the axe about level with the ghost(you should just be able to get out of the pit). then run and jump as far right as possible(to the skull), return your axe, and it will fly back to you killing the bat at the same time.
You'll need the bottle to get the gloves from the hobo, and that's the only way to use that. Maybe you used something else?