To add a new Suit Artifact when there's no inventory space and you reach the maximum limit, you need to destroy an existing Artifact: 1. Press the Touch Pad to bring up your Suit Computer. 2. Press R1 and go to the Equipment tab. 3. Go to Items > Artifacts and select the Artifact that you want to remove. 4. Press and hold the Square button to destroy the Artifact. 5. Pick up the new one.