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The Hockey games are four different souvenirs in WarioWare: Twisted! All four are found on the far left side of the Games folder. They are based off of one of Wario-Man's microgames, Wario Hockey, as well as the real-life game air hockey.
"I'll take a break from work to play a round with you."
"Yeah, play against me! I may be little, but I know a trick or two!"
"You might be shocked if you challenge me."
Eternal Wario Hockey
"I can play all night. And day. And night."