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Mario Kart: Koopa's Challenge™ at Universal Studios Japan. Right now the queue is 80 minutes.
Busiest around 10am (about 115 min) and quietest around 10pm (about 14 min).
Of the days recorded so far, Wednesday averages the longest queue, at about 79 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 165 minutes on 2026-08-25, the shortest 10 minutes on 2026-08-10.
| 9am | 66 min | 25 readings | |
|---|---|---|---|
| 10am | 115 min | 21 readings | |
| 11am | 110 min | 20 readings | |
| 12pm | 101 min | 16 readings | |
| 1pm | 91 min | 20 readings | |
| 2pm | 93 min | 19 readings | |
| 3pm | 83 min | 34 readings | |
| 4pm | 79 min | 25 readings | |
| 5pm | 71 min | 29 readings | |
| 6pm | 68 min | 24 readings | |
| 7pm | 43 min | 24 readings | |
| 9pm | 21 min | 18 readings | |
| 10pm | 14 min | 14 readings |
See every ride at Universal Studios Japan live, or read the park’s history.