It needs a better attack button. Perhaps the left or right key could be used to attack. Pressing up to attack sometimes makes you use up glide instead of attacking, which can be frustrating.
"Your Majesty! We are under attack!" - Knight
"Don't worry, I had this castle built by dim. The only way to kill us is to throw a projectile into a small awkwardly placed hole! That'll take 70 tries before succeeding, and the mechanism that could kill us only have a small chance of working. We can just stand very still, not moving at all. We can even ignore all the explosives underneath us." - King
Muahahaha the world is mine! ...now what? Hang on...where are my cheesy snacks? *Looks at Toky II cam**Sees bag of cheesy snacks on fire* ...NOOOOOOOOOOOOOOOOOOOOOO!!