Lots of fun suggestions here! Thanks!
How would the enemies with the chain work? :)
It could be made in a way that there are 2 generic enemies (can be tough ones) that are attached by the chain. The chain itself can be their lifeline. So we have to destroy the chain. I think the chain should either make it so that it can cut you (laser chain), or it should make it so that you get unbalanced. Could make things interesting.