Hardest game you've ever beaten?

[VGPolyglot]

Leadified said:

BasilZero said:

I gave up when I got inside of a Cave ;(

You're not missing out on much to be honest, I didn't really enjoy it a whole lot.

The game looks pretty interesting to me, but I haven't been able to find a copy of it. I'd probably ragequit before beating it, though!