Great job.
Contrary to what was said in other comments, I had no issues with the controls or the camera.
The idea is cool and well implemented, but I think, in my humble opinion, that you ran into a fundamental contradiction in your game design. The player is supposed to explore the world you crafted, but they are incentivized to stay near the base and keep collecting the same rings over and over to recharge the energy. If I explore, I take the risk of getting lost and not coming back in time to save my base. Basically, I'm punished for exploring.
You could try and nudge the incentives a bit. Like, maybe I can find upgrades when exploring. Or maybe the game is more arcade and the rings don't respawn, so I have to go further and further to get enough ammo. Or maybe I need to find a specific resource to wall off my base and "win"...
I also agree with another reviewer that the theme is not really present in your game. But I don't really care, because IMO the theme is only there to boost creativity (and to prevent people from submitting a game made before the jam ^^)
Anyway, good job :-) This game has some potential and you can rework it to make it better!