It says it on the tin.
Currently practicing door clips. Feels random when I get it, and don't fully know inputs.
Ah yes, inputs. It's not actually random, but some doors are easier to clip than others, and some doors are just straight up unclippable, prime example being the doors in the section of 5-5 we actually play in FPRTA. What you want to do here is abuse Yoda's third attack, if you take his attacks in sets of 3. His third lunges him slightly higher and slightly faster. You need to set it up so that the second of his attacks is diagonal to the door and then within 10 frames of pressing the attack button a third time, press in the direction of the door. Hope this helps - I'll try and explain it differently if it doesn't. Also, not sure if you heard or not but I'm running this at ESA Winter :)