I beat the game.
This was pretty fun. The soundtrack is catchy, the background super nice and the animations of the eagles and the flags too. The controls feel good, I like the jump on enemies (feels a bit like DuckTales), returning projectiles and the overall boss fight including the look of the boss. I kept dying because I'm lazy, I should have plugged in a controller, so the difficulty was perfect as is for me with the checkpoints everywhere and 3 lifes between checkpoints.