I don't understand the feeling.
Sure, nothing 'ubber awesome' happened in the 2nd movie, but I enjoyed it nevertheless. I think people just got it over-hyped and forgot to see how it really worked.
Takizawa and his friends managed to overcome 'the game' and yet things mostly remained the same. That is because its the truth. Changing the world... changing the people... it just can't be done.
Whatever. I enjoyed it and thats enough for me.