I. Core Operation: Select Precisely, Join Queue​
Control Method: One-finger simple control. A luggage carousel in the center continuously delivers colorful suitcases (red, blue, yellow, green, etc.). Tap a suitcase to send it to the "waiting queue" below, which arranges items in click order by default.​
Key Point: Quickly check suitcase colors and queue status. Prioritize suits that form same-color combinations with existing ones to avoid queue chaos from blind taps.​
II. Core Mechanic: Same-Color Merge, Passengers Depart​
Merge Rule: When 3 same-color suitcases accumulate in the waiting queue, merge triggers automatically — 3 suitcases combine into 1 "complete set", activating the corresponding passenger channel.​
Departure Logic: After merging, the front passenger (near the queue) of the same color in the 3 columns departs (1 passenger per merge). If no such passenger is at the front of all 3 columns, merging only grants points without triggering departure.​
Key Restriction: Different-color suitcases cannot merge. Strictly match colors to avoid piling scattered suitcases of multiple colors in the queue.​
III. Game Objective & Failure Condition​
Core Objective: Keep tapping carousel suitcases and trigger passenger departures through same-color merges.​
Failure Condition: The waiting queue has a fixed capacity limit. The game ends immediately when a newly tapped suitcase cannot join the queue.