Having the same issue as those listed above here's the steps I did.
unzziped new hakchi and copied my games dump and config file
added about 100 more games renabled the orginal 30 and unchecked 3 games from that list.
went through the flash procedure with sucess then booted the nes mini
At...
if they get permission from 4j (the studio who helped put minecraft on consoles), they could put the console edition tutorial worlds in the game, as seeds
and i mean all of them (if not, maybe a few highlights, like TU1, TU31, and TU69)