Games You MUST use this skill for ANY game development, SpriteKit, SceneKit, RealityKit, or interactive simulation work. Quick Reference | Symptom / Task | Reference | |----------------|-----------| | Building a SpriteKit game | See | | SpriteKit API lookup | See | | Physics contacts not firing | See | | Frame rate drops (SpriteKit) | See | | Touches not registering | See | | Memory spikes in gameplay | See | | Coordinate confusion | See | | Scene transition crashes | See | | Objects tunneling through walls | See | | SpriteKit node/action reference | See | | SceneKit maintenance/migration | S…