@ OP

I don't know, really. I can see where you're coming from with the whole cutesy artstyle kind of thing. But I also think it has a very western style - something they probably wouldn't like. I definitely think there's a bit of western-bias influencing the sales figures over there too.

Sony probably released it with minimal marketing as per usual as well, and with a bigger Japanese week for them coming up they probably skipped over LBP.

I don't think it really did that badly all things considered, though. It sold more than LBP PSP did first week (at least according to VGChartz figures) and that obviously had a much bigger install base.

Little big planet has enemies?

Like ones you jump on or kill, because I think they're important, honestly.

Chewing gum platforming

Thid is actually the level I'm at at the moment. The graphics engine is realistic but to me the artstyle is quite stylised and I wouldn't assume it to be a western developed game. 

Because it wasnt Japanese?

They didn't give sackboy huge eyebrows and sad eyes. 

That doesn't really explain why the sales are so absurdly low.

Horrible Vita sales and bad marketing are the usual doom and gloom excesses.

Maybe the Japanese love downloading games from PSN and it's actually selling great? :) If only...

not Kawaii enough... Shouldn't have called Sackboy boy.. but just Sack and be androgynous... the Japanse "cute" isn't the same as in the west.. hench the failure of western IPs like Cabbage Patch Kids, Barbie and many more in Japan

After some answers here, the question changed

It's now, why LBP on PS3 did "good" in japan? (111,376)