As quoted from the YouTube comments:
- "I'm a shootin' star leapin' through the sky" Kirby crashes his warpstar.
- "Defying the laws of gravity" everyone dodges Mewtwo's attack.
- "Lady Godiva" Isabelle poses.
- "There's no stoppin' me" Pit blazes by.
- "I'm burning through the sky, 300 degrees" Charizard shows up.
- "Traveling at the speed of light" Captain Falcon goes flying.
- "Make a supersonic man outta you" Sonic shows up.
- "Havin' a ball" the Smash Ball appears in Inkling's eye.
- Every time he mentions the sky someone is flying.
- "Having a good time" Inkling jumping around with a big grin.
I think Shaun of the Dead has a montage with this song during some zombie-bafoonery
I haven't listened to all of these since I'm at work, but there absolutely needs to be a "Mad World" version if it doesn't already exist.