This is one of the best puzzle games I have ever played. I even have a new mechanic idea, cross blocks. the way they work is simple, they are a pushable block that you can pass through as the Nuworm. but when used in a bigger worm, instead of bending normally, things keep the same relative possitions to the block, basically, if you have a strait tail behind it, the tail will not be able to bend. and if something would hit a wall from rotating, it falls off, but it can get caught on stuff when moving forwards, T bends can also maybe happen, and would be mostly similar, but the Nuworm wont change directions within them, to prevent any softlocks, (although the Nuworm outside of blocks could be used for ice puzzle nonsence
Hahaha, this idea for how to expand the game (among many others) was running through my mind at some point and it sounds… potentially very hard to keep track of, hard to implement, but also really cool! I think I concluded such a part could basically never bend even with nothing attached… unless there is a clever way…