Crowd Express features unique obstacles and block types, bringing depth and strategy to the game (The best is yet to come—stay tuned!). Here's a quick overview of each obstacle mechanic to help you master the challenges and beat the levels.

• Hurry: Buses move automatically! Stay sharp and time your moves to avoid collisions or missed slots.
• Hidden: Mystery colors! The color of a hidden bus is only revealed once the blocking bus in front is moved.
• Garage:Strategic entry required. The gate only opens for the color of the next bus in line.
• Lock: This bus is locked down. It won’t move for X turns—plan around the delay.
• Frozen: Frosty trouble! The bus is frozen for 4 moves. It won’t start thawing until the front is clear.
• Megaphone :A one-time call! Instantly boards all passengers of a specific color from the queue.
• Convoy :Follow the leader. Vehicles in a convoy can’t move unless the one in front does.
• Chain: Bound together. Chained buses stay put until you break the chain—literally.
• Gum: Sticky situation! Gummed buses move as one. Either both enter the slot, or neither does.
• Key :Locked up! A key is required to unlock this bus. Until then, it can't pick up any passengers.
• Transit :Incoming traffic! A filled bus with mixed-colored passengers arrives. Sort them by color before sending them off.
• Dye :Color splash! This special bus paints its parking slot with its own color. That slot stays painted for the rest of the level.

Can each level be completed without requiring any booster or purchase?
Yes! Each level is carefully designed to be both fun and challenging, and every level can be completed without requiring any booster or purchase.