Lakitu's feet are first seen in his appearance in Mario Kart 7. Unlike other Koopas, he wears no boots. This is also one of the only Lakitus with a red shell.

If you have a red shell, wait until the driver is just about to hit the jump and use it. ... If you cross the finish line while the Lakitu has you, it counts as a lap! Stop the Music.

If you have a red shell and someone approaches you from the front but drives past before you get the chance to react, you can quickly do a 180 to face them after they pass and chuck the shell at them.