1) Objectives
Up and Down the Stairs is a game that tests not horizontal but vertical moving ability of the robots with understanding of humane walking system .A research says the performance of the robots varies as students’ programming ability and mechanical comprehension of human articulations This game also provides an opportunity to comprehend how the future humanoid robots will be.

2) Participants
Elementary (under 12)/Middle and high school students (13~18)

3) Team Formation
2~3 persons and 1 robot per team

4) Game Method

4-1) Elementary school students
A playground assigned on the game day by the committee will be used for Up Stairs. According to the number of steps assigned on the day, robots should step up the stairs and stop at an assigned stair as fast as possible. (Stay at the assigned stair for more than 3 seconds will be judged as stop)

4-2) Middle/high school students
A playground assigned on the game day by the committee will be used for Up and Down Stairs. Robots should climb up and then down the stairs on the other side as fast as possible and stop at an assigned step. The stairway lies like a straight based line with upward and downward slopes; therefore, no reverse is needed.

5) Game rule
* Robots should be constructed in 3 hours.
* Robots should work with an independent electric power supply. Combustion power (e.g. engine) is not allowed. Direct control by the participants is not allowed except the starting of the robot.
*The participants should use a controlling part of robot after setting up in advance; on the contrary, other parts except the controlling part should be constructed on a field spot.
*Robots should walk up or down step by step. For every step, the whole body of the robots should be within the area of the stair.
* Robots’ size is not restricted. But the size of the robots should be changed appropriately according to the size of the playground . Otherwise, the team will be disqualified.
* Robots’ action should be performed by leg-shaped component or corresponding component utilizing leg moving mechanism.
* Robots, which use wheels or caterpillars for movement, will not be admitted.
* Computer is allowed for programming. Each team should take the notebook computer for programming by itself.
*Robots must stop more than 5 seconds on the finish line.

6) Playground
* Each stair size is 60cm40cm5cm (length/width/height).
※ For elementary school students, stair size is 60cm40cm3cm (length/width/height).
* A 5cm wide black line is drawn on the end of each up step (place where the step meet with the next up stair) and front of each down stair (place where the stair meet with the next down stair). The red part in the figure represents the real black line.
* Stair is 60cm long, 40cm wide and 5cm high. The width of the top stair is 50cm