Unity 6 Object Pooling Tutorial

utm_content=youtube_2026_unity6objectpooling Spawning and destroying objects every frame is one of the most common performance pitfalls in Unity, and it shows up fastest in games with a lot of projectiles — bullet hells, twin-stick shooters, tower defense, and so on. In this Unity 6 tutorial we walk through object pooling: instead of instantiating and destroying projectiles over and over, we create them once and reuse them by enabling and disabling, which keeps the frame rate stable on desktop and especially on mobile. You'll build a reusable ProjectilePool component on top of Unity's built-in generic ObjectPool from the UnityEngine.Pool namespace, wiring up the four pool callbacks (create, get, release, destroy), default and max capacities, and the collection check that catches double-releases. From there we apply the pool to the player's projectiles, then build an enemy spawner that injects the correct pool reference into each enemy at runtime so every enemy can pull from a shared pool instead of instantiating its own bullets. Along the way we cover the small but important details that trip people up the first time they try pooling — like resetting linear velocity when a projectile is re-enabled, separating the player pool from the enemy pool, and using prefabs so the whole setup carries over to other scenes. This lesson is part of the Unity Bullet Hell Polish course on Zenva Academy, where we take a working shooter and harden it into a polished, performant game.