Pastapadre has posted his impressions of NBA Jam, which includes quite a few captured videos from the PAX event, he recently attended.
"In terms of gameplay it very similar to the NBA Jam of old, though with the updated control scheme and smoother movement. One thing I liked was with the shove attempts. When unsuccessful it takes a moment for the player to recover, so people won’t be able to just run around throwing shoves non-stop without paying the price. The right stick works well also for attempting steals, which I found to be the smarter thing to attempt unless I was squared up perfectly for a shove. Usually what I would do is try and shove the off-the-ball player and go for the steal if closing in on the ball handler.
One issue I noticed was with the way the CPU played. I know for many people NBA Jam is all about the head-to-head experience, but the single player modes are intended to add depth and a unique challenge. What I saw against the CPU was an obvious tentativeness, in the couple videos against the CPU you’ll probably notice that they take a lot of jump shots. That made them pretty easy to handle, with lots of blocked shots and numerous shot clock violations. Even a guy like Kobe Bryant was playing soft when controlled by the CPU."