A fun concept that executed quite well.
A pleasantly high skill ceiling on going fast, and the grappling hook, jetpack, and snowboard all work really well together to combine into speed and feel pretty good when you're doing it.
I like how the sounds are understated besides the inevitable worm death digging towards you over the horizon. I think the grappling hook is missing that fun reeling sound that most gaming grappling hooks have though.
These damn worms are infuriatingly relentless though. I'm imagining a Devil Daggers like version of this where there's a bunch of smaller, slower enemies to dodge and that worm is the big slow one you're always running away from. Right now it just feels too fast, but of course its purpose is to get you moving and it definitely succeeds at that.
White ship parts on almost-white sand is a bit annoying to find, and I'm not sure what the purpose of the gems are besides feeling nice to collect, but they certainly do!
I can see this going places with a few tweaks to the feel of gaining momentum, and maybe a few more things to do with your speed.