The Impulse Grenade is a small, spherical device with a bright, colorful exterior, featuring a cartoonish design with exaggerated proportions. It has a smooth, glossy surface with vibrant, contrasting colors, typically a mix of neon blue and yellow, and a prominent, oversized pin for comedic effect. The grenade emits a faint, pulsating glow, indicating its explosive nature, and is adorned with simple, bold patterns or decals that align with Fortnite's playful art style.