I really enjoyed it! Unique mechanic with having to purchase the safety net's advancement through the stage. I like how it evolved from a mining game at first and ramped up to be more action-packed as it went on. Gameplay was well-polished and engaging.

The sound effects got a little repetitive. Some variation there could help. Also could have used some screen shake on hits though that's more of a personal preference thing.

I did a playthrough of it for my YouTube channel: https://youtu.be/w4rEjU_kc-Q

doesn't load for me for some reason

I like the atmosphere and game feel you've created here! For 1 week of solo development, this is really impressive!

My little nitpick:
In the current state, I don't like being restricted by the safe space in the story mode. It doesn't quite feel justified. For a path that is super linear, I think adding a small narrative to the game could go a long way in terms of justification. Otherwise, the restriction presented feels a bit arbitrary.

Awesome job tho! This really makes me feel really nostalgic in a special way.

Well, you finally got it working, so I guess that's progress. But, it's bigger than my screen, so you might want to lower the size about 20-25%. Also, there are no instructions. I shoot a rock. I walk outside the circle. A counter starts and I die. :'(