concept thingy for a game me and a friend have been plotting out for about a year

the idea started as "isaac greed mode but platformer kind of" but we expanded it from there and now it's quite something
it's about the characters having some severe problems, and having severe hallucinations before passing out, not heard from again for a few months. you dream the entire game.
your goal is to kill yourself in-dream and defeat consciousness so you wake up and not be dead.