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Mario Kart: Koopa's Challenge™ at Universal Studios Japan. Right now the queue is 15 minutes.
Busiest around 11am (about 117 min) and quietest around 10pm (about 14 min).
Of the days recorded so far, Monday averages the longest queue, at about 87 minutes.
Closed during 0% of the readings taken while the park was fully open. The feed does not say why, so that covers refurbishment and weather as well as breakdowns.
The longest queue we have recorded is 215 minutes on 2026-09-22, the shortest 10 minutes on 2026-08-10.
| 9am | 75 min | 36 readings | |
|---|---|---|---|
| 10am | 116 min | 35 readings | |
| 11am | 117 min | 34 readings | |
| 12pm | 107 min | 24 readings | |
| 1pm | 94 min | 29 readings | |
| 2pm | 97 min | 28 readings | |
| 3pm | 94 min | 58 readings | |
| 4pm | 88 min | 39 readings | |
| 5pm | 80 min | 46 readings | |
| 6pm | 73 min | 41 readings | |
| 7pm | 56 min | 42 readings | |
| 9pm | 22 min | 31 readings | |
| 10pm | 14 min | 23 readings |
See every ride at Universal Studios Japan live, or read the park’s history.