I think the inclusion of the 'F1 to help' was absolutely necessary and the game would have been way too confusing without it, so it's great you had that foresight. I a lot of the models used in this game too.
As for some criticism, I think the enemies were way too hard to kill. If you have coins you can maybe kill them with the 3 ability but I was never able to kill an enemy with the sword even though they were making sounds like they were getting hit. Also, if I walk up to a wall and just spam space I can jump right up the wall. So that should be something to look into for future uses of your character controller