MrGrunz | Mirror Room Strategy - Awesomeness (TAS) @MrGrunz | Uploaded September 2010 | Updated October 2024, 11 hours ago.
This is now the 3rd version of this room and by far the quickest by now.

I use a Sideways Jump with a bomb recoil followed by a triple staircased mega flip hover to grab the ledge with the zora mask followed by a recoil flip clipping OoB going into a Z-Slide of the Goron thing :D

This should be the final way now that will be also used in the full game TAS.

Enjoy