Yes, unfortunately I am not proficient with cutscenes. I hemmed and hawed about what exactly to do once the boss was defeated... In an ideal world with another two or three weeks to work on it, I'd want something more cinematic for the intro (where one might be able to see the planet from orbit, and see the spaceship from which the shop and your drilling vehicle are initially deployed), and a much higher-effort ending cutscene better explaining why what happens at the end actually happens, and a lingering end screen from which you could either "recover" and continue mining away in some New Game Plus or something, or restart or something

I was also unsure exactly how much health to give the worms, and I suspect I've drastically under-healthed the worm and the boss. Your drill does "mining_strength" in damage to worms and bosses every frame- 60 times per second- which ranges from 0.3 at the start to 12.5 at maximum upgrade level, meaning you can chew through... "750" health per second with a max drill, which... indeed... outstrips the worms and the boss by far (worms have 160 to 260 health, the boss has 200 health per heart) (though in my defense I only did this math now, and the intended combat method is bombs, which do 30 damage, and 2.5x aka 75 damage on worm's mouths and boss's hearts). My first change would probably be to, like, 6x worm and boss health (and also boost bomb damage by a similar amount (without boosting bomb damage to the player)) so drilling to attack isn't unusable, but takes significant investment instead of just being "oops I accidentally killed the worm in the way". I also wish I figured out what sort of death graphics to have for the worm, simply poofing really really sucks.

With that said, I'm glad the progression seemed well-paced, with the mushrooms and the worms and such. I spent a lot of time thinking carefully on when to introduce each new element. Mostly just wish I had more to introduce!! More enemies, more interactions, more special cases! Without such, the mid-late game kinda goes stale, effectively nothing new happens on the stretch from depth ~120 (where worms start showing up) all the way to depth 320 (where the boss lives). That's fine up to maybe half that distance, but by THAT point the game really wants another obstacle to show up. Issue is I dunno what to put down there!!

...Thank you for checking out my game!!!