I played your game and made a video about it. I love how simple and pleasant it is. However, I could not figure out most of the things(for example how to jump or what i have to do to survive the first wave,) and I did not know how to open the help menu again. My record is 250 seconds. If you want to cut your game out of the video, let me know. However, if you like the video, I make similar videos every day. I will be happy if you subscribe. Anyway, I enjoyed playing your game.

nice game bro

Very Nice game Keep it Up! Man 

Nothing much to improve But one thing which you can do is to ad  different types of ammo 

like explosive ammo on killing  certain amount of enemies. 

BTW enjoyed your game.

this is probably the best game i have played in gamejam Great work man

Also check my game if possible and give feedback