Wrapping up for the night. I tried some refraction mechanics but they ended up being hacky and still not working. However, that'll stray a bit further from the "reflection" theme and I need to focus on the 4 of my 4:44 (as Burnerknight Studios told us :) ). I submitted what I had so far if you'd like to try out the reflection mechanics!
https://mattcolon.itch.io/cgdc-speedgame-hardmode-2021-reflection-tbd