[quote=@NarayanK]
Speaking of hard games, what would you all consider to be some games you found to be genuinely hard to play through? o-o;

Mine would be Ninja Gaiden (the pixelated side-scroller one!) xD
[/quote]

I'm about to try out a new game I recently discovered. Not sure if it's hard/challenging though, but it looks awesome.

Momodora: Reverie under the moonlight. $10 USD, and about 150 MBs.