At one point in Ratchet & Clank 2, you stumble across a hoverboard race hosted by a curvy green-skinned alien. On your first encounter, Miss Alien Host looks like this:
"If you see William Shatner, tell him he owes me alimony."
If for whatever reason the pivotal chase scene from Back to the Future 2 wasn't enough to prompt you to immediately sign up for some high-octane fun, you could just linger in front of the host and begin repeatedly performing elaborate side-flips.
Behold: The Legendary Canadian Courtship Dance!
Who knows what sort of sad, strange, and undoubtedly mentally misaligned individual originally felt this odd performance was worth a go, but as it just so happens, this bizarre display will not go unrewarded. You see, the more you perform gymnastic stunts in front of her, the more the female alien's breasts will inexplicably inflate.