There are some graphical glitch with the lava, there is layer priority on blocks in the castle intro (how is that even possible?), the overworld is too simple (I know it's a demo but), I think I break the cloud level by going on the side and going up to the exit, there is slowdown in lakitu grotto when there is too many spinnies on screen.
But the level design is good. The puzzle in the switch palace is clever. The message box are funny.
The grotto level is great. I never knew that spiny were this slow when underwater. Having lakitu throw spinnies for under is a good idea. But if you kill the lakitu with a fireball it make the level too easy.
It's good, keep it up.
