Guy told me about it on a forum I frequent. Some noob was drawing stuff on the "Stuff you doodled" thread, and it was all weird ass shit. This other guy was like "That shit looks like something that could've been drawn out've Yume Nikki." And we were all "WHAAAATS THAAAT?!" So then he told us and we got into a heated "LSD IS SCARIER THAN YUME NIKKI" "NO FGT" argument. I REALLY got hooked when on the "Add to the picture" Thread some guy posted a wierd ass face at the bottom of the picture, and The same guy that brought Yume Nikki up the first time posted the picture to the left. I had done some researching on Yume Nikki and the funny thing is I was ninja'd by him so I said, and I quote: "Fuck I was ninja'd.
FUCK I WAS NINJA'D BY UBOA!
UBOAAAAAAAAAAAAAAAAAA!
There goes my sleep for the next three nights."
I was scared of Uboa at the time. I really did lose sleep over him/her/it. Anyway, I diecided to go ahead and do some more research from Lets Plays, Wikias, TVTropes, and, against my better judgement, tried the game myself. I lost more sleep and look like shit now, but for some odd-ass reason, I laugh at most Yume Nikki stuff. KyuKyu-Kuun makes me smile, etc, etc...
So yeah. Long comment, and that's how I found it. Also, I got really into Uboachan after another guy on that same forum asked "WTF is uboa, and wtf is yume nikki." I posted two images from this forum, and when I realized that they were both from /uboa/, I just linked to there at the end. Remember the guy who brought it up first? He said "In hindsight he's not that scary
just
don't
make me see him in my room"
100 internets to the person that makes an image of Uboa in a generic room.