i downloaded the puffin app from the play store, set puffin to always view the desktop site, then logged into nutaku from there.
you do get ads cause puffin is free, but it's like one ad a day...
seems to run quite a few games through it too. i've played crush crush, FKG, kami pro, dragon prov, pero pero, and osawari island (rip this game) off it.
and a LONG time ago, it did run sengoku providence and kanpani girls...