omg it took so long
i used this for reference. the image is very tiny, so it probably will still take you a while, but oh well ^^
the site has most area listings and info but is still being updated all the time..
http://www.serebii.net/picross/areas/area03.shtml
it's helpful, if you come across one of the legendary pokemon too..
(03-03 isn't greninja tho..)
wait till you get to ash greninja :O *_*
https://www.reddit.com/r/PokemonPicross/wiki/index#wiki_passwords passwords for US and EU are here by the way if you still need
also if you run out of energy during a puzzle, you can just press start and let your 3ds be for a whiel (like 30 minutes to an hour or so) since that stops time progess in your puzzle, but still fills up your energy bar again at normal speed.
hope that helps.