That Sanctuary sounds much harder than early power bomb with the use of TAS SW. That's because I'm attempting a No-Dark-Suit run on hard mode. Even with six energy tanks (I got the one in Windchamber Gateway early with Roll Jump, BTW), Boosty is still fairly hard. I can never seem to nail him right after his starting animation ends and before he starts moving. And even though I jump like crazy, he's coming my way, and by the time I land he nails me.
Any hints on killing him any other way?
Any hints on killing him any other way?