Quote from Dr- graves on October 9, 2022, 7:24 am

Alright so I've been going through the challenge levels and trying to figure them out myself by learning glitches and going as far as I can without looking up solutions, I understand that Ceiling button requires a CFG, however in this particular level it seems significantly harder to execute one than any other time I've used it. I used it in portal reloaded for the last couple levels, any tips on doing it on ceiling button?