Thank you for your kind words and constructive criticism! There's a lot here and IDK if I can adequately respond to it all except that I'm taking it in :) However on some of the main things:
* Input/power control directions were supposed to be introduced everywhere. As you noticed I think, the worm mode instructions are only on 1 of the 3 places it could be used.
* Map is there on the pause menu I just need to tell people there is a pause menu, OOPS. No biomes are shown, but if you've not finished yet that might help a little. Honestly falls apart a bit in jam version anyway.
* Upgrades don't actually do anything in the jam version, but in post-jam-polish I think my plan is 3/HP and probably similar for the attack ones. They do play a small stinger when collected in the current--unreleased because jam ongoing--build.