Again evolution rather than revolution

The GBA version of Super Mario World can possibly compete on an equal footing, but that's it.
NSMB2 is again a bit better than its direct predecessor, which was already pretty awesome. Revolutions there not been improved in the details and the features of the game were expatiated here already everywhere so I just want to mention what makes this game in my eyes so extraordinary:

It's fair through and through:
The player is never compelled to blindly jump into the abyss, and to hope that it is below an invisible from above platform there that saves his life. And if it does, mark as usual coins the way.

Few things in this game, the arbitrariness was left. Even invisible blocks, for example, lead to a climbing vine in a bonus level can be sought from experienced players targeted. Why is there down there a platform between the two columns? The results but nowhere ...

Do you need an item for example, to reach a star coin, one can find in this level nearing that point. Do I need a particular opponent for so respawn this, you should kill him by mistake before.

In summary: There is simply no "Cheapness" in this game. The designers have apparently really meant something in every detail.

The attention to detail:
Not only was the graphics certainly far more cost driven as one would notice at first glance. And otherwise has worked with very great attention to detail. Most opponents lead eg dance steps with certain tones in the soundtrack. There are those little things that give one the feeling of playing a truly polished product.

The level design
This is typical excellent as for Mario games. And one often has the feeling that at any level revolves around a particular concept. As Mini Mario flit across the water and dodging fish. In a world of water tubes for a snapping moraines dodge. Parakoopas fight with the tanks of their colleagues. And just by focusing on such individual concepts, the developers seem to have come to completely new ideas.

Teaching without annoying tutorial or hint messages:
NSMB2 teaches the player how this game is to play, without even once to annoy him so. Just one example: for the last boss fight a new kind of platform is important. The player looks just how they behave when Mario jumps over it in a (very short) cutscene. Man does not die the Erkenntnistod, you have to push away any message. You simply play and absorbed.
Many other games could adopt this approach an example.

In my opinion, these are qualities that may well have more games.

The only negative thing I would have to say regarding this game, these two points:
In Super Mario World levels were the have a second, secret exit, marked with a red dot on the world map. This avoided that was sought in some levels to such secret exits where none were. Should there be in NSMB2.
The other is the difficulty. Play through the game until the end and defeat Bowser is relatively easy even in the optional StarWorld. If you want a real challenge as Mario veteran, really have to do and of course, in levels that you've played before on the search for the more difficult-to-reach Star Coins.
One wishes but that Nintendo would take a little more eye-catching to core gamers.
But all this is not worth it to deduct even one star. Half, maybe, but

And ... oh, Spoiler: The Princess was kidnapped once again :-)