Keys and switches are common interactive elements used in Braid's puzzles. Keys are typically used to unlock doors, while switches activate various mechanisms like platforms, gates, or bridges. The challenge often lies in how these items interact with Tim's time-manipulation abilities. For instance, a key might need to be 'carried' through a time-rewinding section, or a switch might need to be held down by a shadow Tim.
- Keys: Pick up keys by interacting with them (E or Enter). They are automatically used when you approach a locked door.
- Switches: Stand on or interact with switches to activate mechanisms. Some switches are pressure plates, others are levers.
- Time Interaction: The core of these puzzles involves using rewind, shadow Tim, or directional time to ensure keys are present at doors or switches are activated at the correct moment.
Always consider how your time powers can affect these items. Can you rewind to get a key back after using it? Can your shadow hold a switch while you pass? These are the types of questions Braid encourages you to ask when encountering these common puzzle elements.