Celeste - Cosmic Column B-Side

When I started playing this, I did not expect it to be as difficult as it ended up being. I had to look up other people's runs to get an idea for how to complete some of the rooms, and I did not know a lot of the high-level techs required for a lot of them before I started playing. To this date, this is now the most technically challenging map I have cleared.
Input mapping:
A, B: Jump
X: Dash
Y: Demo/Crouch Dash
Right Trigger: Grab
Note: The variants badge at the end (under my input display) is there because I lowered the game speed to practice the Theo section seen at 8:15.