Is anyone aware of good portal/p2 maps that require the use of glitches to complete? (like portal bumping, acute angle, ABH/AFH, etc.)

how can something that is broken/glitched be a good map?

Someone made a map where the solution was to head-glitch through portals.. I don't remember what it was called, but it was awkward and annoying...

I don't know what any of those other glitches are though O_o