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Mario Kart: Koopa's Challenge™ at Universal Studios Japan. Right now the queue is 155 minutes.
Busiest around 11am (about 119 min) and quietest around 10pm (about 17 min).
Of the days recorded so far, Tuesday averages the longest queue, at about 91 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 | 90 min | 50 readings | |
|---|---|---|---|
| 10am | 117 min | 49 readings | |
| 11am | 119 min | 47 readings | |
| 12pm | 109 min | 34 readings | |
| 1pm | 102 min | 38 readings | |
| 2pm | 96 min | 37 readings | |
| 3pm | 98 min | 74 readings | |
| 4pm | 92 min | 54 readings | |
| 5pm | 84 min | 60 readings | |
| 6pm | 75 min | 53 readings | |
| 7pm | 58 min | 56 readings | |
| 9pm | 26 min | 40 readings | |
| 10pm | 17 min | 32 readings |
See every ride at Universal Studios Japan live, or read the park’s history.