The origins of the Rescue Aid Society itself, from that first act of willingly putting thier lives on the line to help those in danger is pretty impressive for mice.
For the real Disney geeks, Marahute and Cody's flight together is absolutely a CMOA for the Bronze Age Disney animation team and for Chris Sanders and Glen Keane specifically.
Penny's, what, six to eight years old? She gets to drive Medusa's jet-powered swamp skimmer in the escape sequence. If you think a child driving a Cool Boat is awesome, wait 'til you see Medusa turn her pet crocs into water skis. (Cue demotivational posters about Disney encouraging minors to drive vehicles. "Remember, kids: never drive a boat through a swamp if your abusive guardian is behind you on crocodiles.")
Between movies, Bernard is named the Rescue Aid Society's American delegate.
Any time Bernard decides it's time to get dangerous. For example, in the sequel, Bernard tamed a razorback boar by grabbing it by the tusks, flipping it over and giving it a Death Glare.
The end of Down Under, where he gets to be the hero.