What I recall of Balloon Fight on the Nintendo Entertainment System was whaling on one button or the other to maintain altitude, to the point of thumb cramps. Balloon Trip Breeze, the Wii U's obvious homage to the NES classic, relies on the use of a stylus with the Wii U GamePad's touchscreen, as Kotaku's Jason Schreier here demonstrates.

Don't worry, you don't have to play it with such a crooked wrist posture—Jason's only doing that so we can see the screen.