I think it's from the ball mini-game from wario land 4 :) Wario's homerun derby it's called, right? When the chearleaders come in. I watched that part of the video, and literally heard them saying "Bye bye!" after it ended xD
Superstar baseball just does not stop giving, remember the sunlike symbol in Worlds file select:
Turns out they put that in aswell:
Fitting, given the fact that this field is supposed to be Warios palace.
Oh yeah, Warios bio fron this game...
The Wario Car in MKDD!
The W Emblem in PMTTYD
P.S. Is there a thread where there is references in Wario games because there's a character in WL4 that looks like the G&W?
It's time for more references!
This time from Mario Golf Toadstool Tour:
Hmm; that birdie pose looks kinda familiar...
Possible flat Wario reference!
Wario gets flatened by a rock and begins to waddle sideways, very similar to flat Wario...
The baseballfield that CM30 mentioned, is actually a very faithful tribute to Wario Worlds final level: Pecan sands:
The palmtrees were already in the original and not just added for flavor.
But best of all:
Thies bird thingies are actually...
Wario wearing his Land 1/Virtual boy hat in Mario Party 2s Mystery Land:
Wario on Mario Party 6s title screen and cover:
Shoulder charge anyone?
Oh yeah, Game & Watch gallery 4s Wario stuff and Dr Mario 64 have their own threads too, I just...
Wario in his Gameboy colors, from Mario Golf 64:
-Greenhorn forest from Wario World got a remix in DDR Mario mix.
-The Wario land 3 theme plays during Warios trophy celepration in power tennis.
The Wario courths, shoulder charge in world...