Geometry Dash
Nine Circles by Zobros
[i]The Level That Started it All[/i].
Tell me, did Darksouls take you several thousands tries to beat?
Also
[spoiler]Cataclysm
Windfall
[/spoiler]
In regards to the series, the Souls series has to be the hardest. There's no way to go forward until you try and try and master each area, and even then if you slip up a bit you're punished.
That being said, summoning others to help make the fights easier, but the game still asks you to do your part in combat and surviving. I'm currently in love with bloodborne (yes it's part of the series) and how fast-paced it needs you to be.
After watching my 11 year old destroy every boss in Dark Souls 2 other then last 2 and DLC bosses(that's tomorrow he says)...I now feel less as an gamer, I mean come on...it took me like 20+ on smelter and about the same with Lost Sinner
I come home from work and he say...beat em in 3 tries...ARGHHHHHHHH
But old school Ninja Gaiden...now that left scars
Geometry dash is harder than darksouls. Dark souls is pretty hard but doesn't need you to have ultra fast reflexes and doesn't need you to focus every second.