Hardest Video Games you've played?

[Critical Dude]

Blinx is one of my favorites, I forgot how much that game used to kick my ass when I was a kid, I totally gotta play it again. I had always played 2 more though but the first one gives so many nightmares rofl

Lol, it was my favourite game too. The amount of hours that I put into the game (probably 500+) was insane.
The final boss was really hard for me, especially when it starts to spam those time abilities (I forgot the proper name).

OT: I'm going to add Kingdom Hearts 2 Final Mix to the list (all because of that "Lingering Will").