Basically, you actually are playing the minigames on the Wii's gamepad, while this is happening on your TV. There's a button to fake being asleep.
According to reviews, this is the only good game in Game and Wario, which is a real shame, as I really enjoyed the older Wario Ware games. The gamecube one made a hell of a drinking game.
Warioware has been going downhill with every title after the original and gamecube ones. The last one I played was for the DS, and really disappointing.
Instead of themes for microgames such as 'nature', 'sci fi', and 'classic nintendo', they decided to go for themes like 'games where you tap the screen', 'games where you swipe', and 'games where you move the stylus in a circle'. Not only were these themes boring as hell, but it also meant every game in a group felt the exact same as the others.
It could have been decent if it had mixed them all up, but even then, not as good as the original.
5:37 was really weird. I like that despite the game system being a lot more advanced the gameplay hasn't really changed at all from the "press button at certain time" mechanic.
This is only one of two screens of the game. On the fancy WiiU control pad's screen, the player must play WarioWare (a rapid-fire collection of very short minigames).