- Hair Reboot: While testing the laser, Ferb accidentally burns off one of the strands in Phineas' hair, who comments, "new hairdo, check it out." However, just a few shots later, the strand is fully grown again.
- Squirrels in My Pants: The Trope Namer; this is one of the torments inflicted on Candace by Li'l Suzy.
- This is No Time to Panic: When the observatory threatens to collapse thanks to Doof's death ray, Phineas says this to the audience. Then a piece of the roof nearly lands on him, and he says "Okay, now you can panic."
- Verbal Backspace:Isabella: You had me at "our grandchildren"...Phineas: ...What?Isabella: Steaks! You had me at "steaks"!
- Visual Pun: "We just keep getting served."