In "For Your Ice Only", Phineas and Ferb take a hockey game to the extreme. In "Happy New Year!", the boys plan their own New Year's Eve ball drop while Candace makes a resolution to stop busting her brothers.
Did You Know?
Perry the Platypus? You can't come in here; this is a black-tie affair.
[Perry leaves, then returns, wearing a tux but no pants
Actually, I guess it doesn't really specify pants anywhere, so I guess you're okay.
References For Your Eyes Only