Ra Ra BOOM is a tight, cheerful co-op brawler that nails the pick-up-and-play arcade feeling while adding just enough customization to keep sessions interesting. The game shines as a four-player local experience (with Remote Play Together supported), but it’s perfectly playable solo for a laid-back weekend smash‑fest. The premise is delightfully over-the-top: Earth is being wrecked by a rogue AI and a gang of robots, and four high‑schoolers from outer space-Aris, Saida, Ren, and Vee-are all that stand between humanity and chaos.