Kaeloo must keep herself entertained while the rest of the main four are otherwise occupied.
"Let's Play All Alone" contains the following tropes:
- Does This Remind You of Anything?: The yogurt convention that Quack Quack is at says that they're selling lactose in the form of pills and patches now.
- Irony: Kaeloo thinks that her friends have abandoned her because she's not important to them, but when she calls Mr. Cat, the latter tells everyone at the party that the caller is "the frog I was telling you guys about just two seconds ago".
