While the concept is interesting and the graphics are great, the gameplay is incredibly hard. I only beat a single wave after several attempts.
- Aiming was far too hard.
- Limiting the number of geese that can spawn in a single wave would make things easier. The limit could be increased as the game progresses.
- Geese were far too strong.
- Healing the player after each round and/or making the health item in the shop heal you all of the way would make the second round easier.
Aside from the difficulty, I enjoyed this. Good work!