Thank you for playing! I agree with you about the Wizard Dance mode; especially when playing in fullscreen on my 4k monitor, sometimes the UI feels a bit too big. But obviously it's still using programmer art, so once I'm ready to replace it all with final artwork, I'll figure something out.
For the shmup mode, the bullets have to move at a certain speed, otherwise it would be impossible to deflect them with the shield. You might be right about the hitboxes though, I'll have to take another look at those.
You should be able to shoot in 4 different directions when controlling the dragon (up, down, left, and right). I may have forgotten to write "mouse to aim" in the instructions; my apologies.
I'm glad you thought the Letter Editing mode was fun! I actually thought about removing that one, until I got some positive feedback about it. And while I was making the levels, I discovered that it's much more fun to play if it seems like one giant block of garbage text at first. If it gets broken down into shorter sentences with fewer misspelled words, it just feels like a chore.