Yume Nikki, anyone?
 

My friend showed me it recently (Errr... Yesterday, actually... XD), and I just finished it this afternoon. It's definitely not for the faint of heart (Or the impatient, for that matter, if you plan on tackling it without a guide), but if you're up for it, it's an amazing game. Probably one of the best free games I've ever played (Other than VMK, maybe?).

I'm suddenly a huge fanboy of Monoko, Tokuto-kun, KYUKYU-KUN (He's awesome. Don't deny it. XD), and, of course, UboAAAAAAAAAAAAAAAAAAAAAAAAAAH.

Anyone else played it?

Also, anyone who has played it, got any good sightseeing suggestions? I've already found a lot of the obvious ones (Mars, Ghost Madotsuki, Closet Madotsuki, the Monochrome sisters, KYUKYU-KUN!), but I definitely am nowhere close to exploring the whole world. XD