We quickly realised that when you moved through a level holding an item, you’d leave a trail of destruction in your path, often unintentionally, because the item would ‘attack’ anything it touched. To avoid that, and allow players to choose when they wanted to use an item to interact or attack, we added the concept of ‘priming’ an item. This allows you to freely carry an item but only use it to attack when you choose to. Look closely at how 47’s grip changes when he’s holding the robot arm – that’s the moment that we hold R2 to prime.