Saucer Swarm
Saucer Swarm is a Battle and Duel mini-game in Mario Party 8.
Introduction
A large flying saucer is seen overhead, and it releases many smaller flying saucers from underneath it. As the camera zooms down, the first player is shown standing on a small podium with a laser blaster positioned on a meteor-like area, presumably the Moon, as the smaller flying saucers touch down on the ground in front of them. The screen then splits to reveal all players, each standing on their own laser blasting podium, and the mini-game begins.
Gameplay
The many small flying saucer-like aliens are trying to home in on the players' podiums and attack, so the player must use their laser blasters to keep the aliens at bay. Whichever player shoots the most flying saucers within the time limit wins. There is an additional golden flying saucer alien who simply floats around in the background. Shooting this flying saucer is worth two points.
Ending
The player who won performs a victory dance, and the other three soon find themselves abducted by the alien spaceship that apparently sent the saucer aliens. The winner then watches the spaceship fly off.