http://www.zeldainformer.com/news/hyrule-warriors-legends-will-include-amiibo-support

Although, it wasn't said what exactly the amiibo functionality did, though it can be assumed it should be the same like in the Wii U version

If you are serious about getting one of the Picross e titles, buy them in reverse order. Currently e6 offers the best value, followed by e5, then e4 etc.

The 15x20 puzzles are mostly a matter of practice. Once you've memorized all Picross-solving strategies, it shouldn't be too much of a problem to clear most of them in under 20 minutes. That aside, in Pokémon Picross there are skills that slow down or stop time, so with the help of your Pokémon you'll get a lot more than 30 minutes to solve these puzzles. The 10x10 puzzles that have to be cleared in under 1 minute pretty much require time skills to succeed on the first attempt.

I was pretty overwhelmed at first too, but after a while, you sort of pick up on strategies as well as good Pokemon that can help you out

What I do to get 00:00, but then again, you would need to use other pokemons to get all the other rewards :/

Basically, I go with Zygarde (any forme, but the one that allows for 3 specified area reveals is the best imo) + Master Time Stopper (Mew or Celebi, etc.) + Jirachi (Master X Fixer) ..though it's probably best to not open another Pokemon slot until you maxed out picrite rewards

Right from the get go, activate time stop and then activate zygarde right afterwards.. as you can choose where to reveal, the timer will not run so you can have a look at the tiles at your own pace. Once, the time stop ability runs out, you can use it again (up to 5 times!) so you can basically finish the whole panel in 00:00 which is great for getting the time bonuses...

Then you can sort of memorize the picture and go back to get the other rewards