It's cute and unique on the theme; it was too hard, though.
Dragons are too fast, the player character is too slow, and the plunger is too hard to aim effectively. It feels like I am fighting a horde of enemies with a wet paper towel, and my only job is to fall over and die—not a ton of fun, lol.
I see a lot of potential here with some tuning, though, I have to find the fun in this one; it is definitely zany and unique enough; good work getting it together in such a short time!