Gun Gun Pixies is an action-packed third-person shooter game developed by Idea Factory for Nintendo Switch. The game is set on Earth, where two tiny aliens named Usamaeru and Kamerieru infiltrate a girl's dormitory to gather information and save their home planet, Pandemo, from an attack.

As players roam through the rooms, they must use their weapons loaded with Happy Bullets, which have positive effects, to gather information from the giant girls they've come to study. The game offers three stage types: "Search & Combat," "Pacification," and "Bathing," each with a different objective. The Sniper Vantage Points in every stage provide an opportunity for players to increase their bullet power and take down enemies.

Stealth is key in Gun Gun Pixies. The girls must not find the players, so it's important to watch the Sight and Listen gauges to avoid getting caught. Additionally, players can go shopping to get new scopes, weapons, and costumes for the pixies to wear.

Overall, Gun Gun Pixies is a unique and entertaining game that offers players an exciting twist on the traditional third-person shooter genre.