>>12562145If you see every Pokemon in the new Unova Pokedex, you get to go to the Nature Preserve area which contains a Shiny Haxorus.
If you see every Pokemon in the National Dex you get the Oval Charm, which ups the chances of having eggs in the Daycare.
But, if you complete the National Dex (capture every Pokemon) then you get the Shiny Charm, which ups the chances of running into a Shiny Pokemon three times.
>http://www.serebii.net/black2white2/dexcompletion.shtmlHabitat is a new part of the Pokedex that lets you see which Pokemon are in which route, city, area, etc. It lists the ones you've seen and caught. It also lets you know when you've seen and caught every Pokemon in that area. Very helpful for collecting them all.
Did you not like it because of the Pokemon or other reasons? Black 2/White 2 let you get a lot more Pokemon than before, which I liked a lot. Being restricted to only Unova Pokemon was kind of boring after the first time through.