Glitches:
If you have archers in your wall and it gets destroyed, the "has" number continuously decrements into negative numbers
If your catapult hits an enemy right after the elite archer, it will not do any damage.
If an enemy is currently in the attack animation when a friendly unit gets to it, it will just go past it. (This seems to work the other way around, too.)
I was almost done with the level and I sliced an orange one that somehow exploded toward me and instantly killed me. There seems to be a lot of glitches like that in this game.
I never once missed any of the typing, but i lost at the end when it said 'space' and I hit 'space' and died. I don't even know what the point of those scenes at the end of each level is, but it frustrates me that I played well and lost for a reason that had nothing to do with typing.