Just a heads up, when I played this in small screen it didn't show the whole screen and when I played it in full screen it was oddly placed in the top left. We had some similar issues with our game, I'm not sure why that is, but wanted to let you know so you could check into it.
The game was fun and frustrating! Level 1, I got wrecked the first couple of times! I kept working at it tho and was finally able to get through it. There was a super annoying glitch where the red enemies would still hit me after being killed and disappearing off the screen. As I transitioned to the next level, if I wasn't far enough away from where I killed them, I took 1 damage which was less than ideal. The gameplay mechanic was really weird and entertaining. I loved the artwork and the time you put into every room, the dragon, the cutscenes, excellent work! I provided the art and animations on March of the Zombles, I know how much time you put into this, excellent work! The style is so good! I think you should've added the training ground at the beginning of the game to give a chance to adjust to the mechanics, that training ground was very entertaining. Solid work, I was frustrated by a lot of it, but I made it through!