nice little game... don't like the fact that you need to have you feet go over the book to get the boast. Also don't like how the books disappear once you go above them... like a worse version of hedgehog launch...
controls seemed a little sluggish
seemed unable to turn around when fighting and would automatically face the wrong way sometimes...
Also the mute sound doesn't mute the swinging of the sword.
Heath bars on enemies would be nice
Game seemed to be lacking something... Polish
Nice game
straight forward but you really need some paper handy
as suggested would be better if it gave a list of the input to results (maybe both stages in the later ones)
Definitely could add some harder levels...
things like XOR, bit shifting and cycling, bit multiplication, etc...