Power Piranha using, 6 AA batteries (not included), and pair it with Gel Blaster Starfire Activator and the Portal smart target (not included) to unlock boundless potential for captivating single and multi-player games. Soak Gellets in water for just 2 hours and watch your gel pellets balloon into Gellets. Provides just enough sting to make it exciting! it feels like getting hit with a rubber band a quick, minor sting. you probably won't even notice because you'll be too busy laughing.