>>528311256
Your Best Nightmare is the theme of Omega Flowey, which is Asriel after being influenced by Chara
The Roots area themes reference Your Best Nightmare
The Roots areas all have encounters that directly relate to Kris's situation or past (Spamton's puppet thing, ERAM wanting to see their eyes flickering red)
Kris was close to and influenced by Dess
Kris became Flowey-like, or was Flowey-like from this influence?
Dess disappeared because Kris did something Flowey-like inside a Dark World?

I dunno if I'm cracking the case but I feel like I'm onto something here