Kill AND Win

If this is your first game here are some tips you might find useful

• Please explain whats your game about (Pitch)
• Add images at least that show the gameplay, why? people hardly will download something they dont know.

About the game:

It really surprise me the game! you can take any screenshot and it will be 100 times better than the actual image

At least you know is a "3D shooter game" with cel shading style.

Good stuff I found

• Game speed is great
• Reload animation and look is great
• Particles are great
• Aiming is great

Things to improve 

• to be the first level dont make it too imposible, Damage of enemies is too heavy and get killed super fast i tried moving on the same side and they autoaim me, I had to do "Left, Right, Left, Right in order to avoid.
• Reduce the speed of bullets of enemies at least 30% less
• Why reducing my HP when I just land on the level?, is unfair and that will make player get angry at the game .
• Make the player reload with "R" is the most common FPS stuff to do. 
• There are some colliders in the stairs part that are annoying

I think Killing all is quite tired, you should put and ending flag as a goal, that will be more satisfying for the players.There is a long way on the indie journey :) I hope you keep doing what you love.