Ok, I've noticed two things in videos. I only have a youtube of one of these though.
1.) Both Ice Climbers can hold on to a ledge at once: http://www.youtube.com/watch?v=YnihK4pqA-I
The point of the video is near the end, at about 2:10. Both Ice Climbers can now hold onto an edge at the same time, so no more having only one Climber saved.
2.) The cord from Belay acts as a tether recovery for the other Climber.
I only saw this in a vid on Niconico, but you may be able to find it on youtube if you search for SSE gameplay vids, and look for one featuring co-op. Basically, during the one and half seconds that the wire from Belay is on screen, if either climber grabs a ledge, they'll automatically whip the other climber to the ledge as well.
Other than that, I've noticed that their Side B helps them even more, there may be a way to keep pressing B and float up a little while using it, and the range you can activate it near Nana and have her still join you in the attack has increased.
1.) Both Ice Climbers can hold on to a ledge at once: http://www.youtube.com/watch?v=YnihK4pqA-I
The point of the video is near the end, at about 2:10. Both Ice Climbers can now hold onto an edge at the same time, so no more having only one Climber saved.
2.) The cord from Belay acts as a tether recovery for the other Climber.
I only saw this in a vid on Niconico, but you may be able to find it on youtube if you search for SSE gameplay vids, and look for one featuring co-op. Basically, during the one and half seconds that the wire from Belay is on screen, if either climber grabs a ledge, they'll automatically whip the other climber to the ledge as well.
Other than that, I've noticed that their Side B helps them even more, there may be a way to keep pressing B and float up a little while using it, and the range you can activate it near Nana and have her still join you in the attack has increased.