I think if you go at 1:30, you will have some long lines for the more popular rides. We always try to go when DQ opens (around 11 or 11:30) and do Pirates about three times. By the time we leave (around 2 or 2:30), the lines are getting pretty long.
The ticket games (aka Chuckie Cheese games) are not that great, very similar to those at CC.