Smooth, fun, complementing mechanics! I beat all the levels and the boss.
Combining upgrades, which also represent your health, which also slow you down - that's an elegant way of integrating several mechanics together! Really impressive.
- I think the mana bar shouldn't be attached to the player, it's hard to follow!
- Maybe be a bit more generous with the amount of mana!
- I think the dragon could be a bit faster, it could get a frustrating to control at times.
- I tired to avoid the green upgrades like the plague because they took away the center shot (at least until you stack up on enough of those!) And I couldn't aim lol
- I didn't understand what the blue upgrades do at first, then later realized it's shot speed!
- You can make the dragon spasm if you put the mouse right on top of it. Not the end of the world!
Congrats on a fantastic entry!