From GameBrew - a wiki dedicated to Video Game Homebrew.
Hoover Maneuver is a DS clone of the minigame Chiritorie (which incidentally, was the name of a vacuum cleaner produced by Nintendo, before they got into video games), from the original Wario Ware for GBA.
It is one of the PAlib projects.
Two opposing Hoovers racing to be the first to collect 50 items of rubbish. Hoover will bounce off each other and walls.
Hoovers spin continuously until the players move button is pressed. Once pressed the Hoover will shoot off in the direction it is facing.
D-Pad - Player 1 move (Green Hoover)
A - Player 2 move (Red Hoover)