Max tells P.J. that the two of them will stick together like Lewis and Clark and Chip 'n' Dale. Both Goof Troop (1992) and Chip 'n Dale: Rescue Rangers (1989) were both shows aired on The Disney Afternoon (which aired in local syndication from 1990 to 1997).
In the scene where the treasure chest is opened both Batman and a Ninja Turtle (Blue Mask like Leonardo but holding nunchaku like Michelangelo) can be seen in the crowd of people watching.