This game is AWESOME!
Variaty of weapons and abilities, you can fly, you are a duck, awesome game.
I have some suggestion if you want to polish the game though: the intro only has a dialogue but the screen is black, so i didnt know if my screen wasnt charging the sprites, tha game crashed and only sound worked or if it was like that. You should add something there, whatever but something so players know its working as expected, add smoke or a background mostly black but with something else or i dont know. Also, you can only use the number keys to use abilities but ith one hand in WASD and the other in the mouse its hard to use them. It would be awesome if you could use them with right click, and use the mouse wheel to go through your abilities and select the one you want to use. Also, you could have one ability slot for movement abilities only that works with Shift key. So my suggestions are about the controls, cause the gameplay is awesome.
Also, you can try my game if you want, it just takes 5 minutes ;)