After one play session, I switched back to the original portal. The new portal is just so light and flimsy, it moves around and tips over just from swapping characters. I thought the cable version would be fine, since my portal sits on a small table with all the figures, and I just slide the table in front of the sofa when playing. This just makes it worse, since, although the cable is long enough, the weight of the cable alone can make the portal tip when there are no figures on top. I own Eneloops, so using batteries means nothing to me.
I played up through chapter 4 with my daughter. I was expecting the levels to be significantly longer, especially considering there are only 16 this time around, compared to the 26 in the first game. Getting 1/5 of the way through the game in just a couple hours, even when we did a lot of dicking around on the ship and such, does not bode well.
I was actually considering getting into the series 2 figures, but if the game is this short, then what's the point.
I also thought there were further character upgrades added to the game, but I see the upgrades are the exact same as before. I assumed the higher level cap also meant a few extra upgrades.
One last comment: the framerate in the Wii version is as bad as reported. 15fps is being generous. It is 15fps about half the time. The other half, I would say it drops below 10. This is without anything even moving on the screen. It's just from the world geometry. I'm going to be very tempted to get the Wii U version if it manages to keep a constant 30+.