Things I have noticed:
Captain America speech seems more corny now
Less Hulk speech
Hulks arm is not hitting the bridge hinge
A lot less trapped balls by hulk
A lot more Loki speech
***Collected all the Avengers (Not completed ) but could NOT start "Battle for the Helicarrier"
What do you have to do to start the mini-wizard mode the Hellicarrier mode ?
It doesn't appear to be as pronounced.