Okay here's some feedback dude
PROS:
+ Satisfying gun controls (or bow I think?) + Funny writing + Fluid controls + Good job introducing a mechanic before expanding on it + Cool cave dungeon setting + I like the skeleton enemy. He's cool.
CONS:
- No run button - Most enemies are just lil goop monsters - You gotta finish that music dude - Occasionally iffy level design (like that part where you're just going down for a while, I just tried to jump all the way down. But there were spikes that I didn't know about, and I died because I didn't already know about them) -Kinda bland black background - First generator is kinda boring to get past, since you're just running back and fourth to get fuel
STUFF I WANNA SEE IN THE FINAL VERSION:
~Add more sound effects. So many games become so much more satisfying with clever use of different sound effects. You have some, but I need them louder and I need more of them.
~Provide an in-game reason for why you're in a cave
~Maybe some new weapons as you go along??
~I want some sort of collectible, at least. Doesn't have to be new weapons.
CONCLUSION:
Okay despite all the negative stuff I said, you have a great start here. You have those controls down, it was just some individual level design stuff that needs work. It really has no major, core issues, it was just some of the extra stuff on top that needs some attention. You obviously put a lot of work into this, and you obviously know what your doing.