Q1: Is Subway Surfers a free-to-play game? A1: Yes, all core gameplay and content updates for Subway Surfers are free. You can earn coins and keys by completing in-game missions. Q2: How do I get new characters? A2: You can get new characters in the following ways: 1. Collect tokens: Collect tokens for specific characters in the game; collect enough to unlock them. 2. Open mystery chests: Characters have a chance to be found in chests earned from completing daily challenges. 3. Use coins to unlock characters. Q3: What are keys used for? A3: Keys are a valuable currency. When you're caught by the police, you can use keys to revive and continue running. Additionally, keys can be used to unlock specific skateboards and character skins. Q4: How do I play with friends? A4: The game itself doesn't support real-time multiplayer, but you can invite others to join you by sharing a game link. You can also help your friends collect coins, creating a win-win situation.