Is there anything at the top of Granny's elevator in Reflection?

[Observato]

There's a separate screen there so of course there must be something. But it isn't a strawberry and I already have the cassette and Crystal Heart, so I'm at a loss for what might be up there.

I've completed some of the B-sides and am aware how to corner boost thanks to a Youtube vid on Summit B-side. There's juuust enough empty wall space for me to think it might be possible to climb, but it seems brutally difficult. Am I just wasting my time?

[SonicBoomNFA]

https://youtu.be/QcyQjk9p5VM
Skip to 11:18

[orbittwz]

At the top there's a special secret, but getting there is difficult, i didn't made the last jump :(

[LeBlonk]

Yes there is something up there, but it isn't a game achievement. It's just an easter egg.