Locomotor skill has an important role in the implementation of Physical Education learning, especially sports that require moving places or stresses, such as sprinting, long jump, high jump, and other sports. This study aimed to determine the differences in the student locomotor skills before and after the students played the Ular Tangga game. In a quasi-experimental study design, thirty-two (n=32) grade 3 elementary school students (age: mean ± SD) participated in this study. Findings showed that the t-count value was greater than the t-table value in the initial and final test results (12.155> 2.042). The results showed that the post-test mean score was higher, 8.28, with a higher standard deviation, 9.71. It means that there was a difference in the average score of the student locomotor movement skills before and after playing the Ular Tangga game. The average value and the t-count value was 12.15. It was due to an increase in student's locomotor movement skills. The application of the Ular Tangga game caused students to move places. Thus, the student movement increased. It concludes that children who play Ular Tangga games will experience better motor skill development and improvement than their peers.