Base of the machine must not be greater than 0.30m x 0.30m (Length x Breadth) and its height should be less than 0.80m at the start of the game. Boundary of the Base is defined by the points on the machine touching the ground in the horizontal position. No human interference to the machine is allowed after the dimension test.
The external wired/wireless remote control used to control the machine manually is not included in this size constraint.
If the machine uses an externally placed power supply, the dimensions of the power supply are not included in the size constraint.
During the game, the machine can expand or detach itself into multiple parts provided it does not damage the arena in any way. The judges hold the right to subjectively determine if the machine violates this clause.
The machine cannot be constructed using readymade Lego kits or any readymade mechanism but use of readymade gear assemblies is allowed. Violating this clause will lead to disqualification of the machine. Judges hold the right to subjectively evaluate this clause.

The machine can use an externally placed or on-board electric or non-electric power supply. Use of compressors is not allowed. However the power supply must be non-polluting and must satisfy the safety constraints determined by the judges. In case the machine is using a non-electric power supply, kindly get it approved from the organizers beforehand via email. Organizers are not responsible for inconvenience if approval is not sought.
The method of propulsion is at the discretion of the builder, provided it does not damage the arena in any way and it satisfies the safety constraints determined by the judges. The machine cannot use any mechanism which directly transmits the manual force to the machine. For example use of clutch wires is not permitted. The judges hold the right to subjectively determine if the machine violates this.
In case of an electric power supply, the voltage at any point on the machine must be lower than or equal to 24 V at any point of time during the game.
The organizers will provide a standard 230V/50 Hz AC power supply. Any extension cords, eliminators, adaptors etc required will have to be arranged by participants themselves.

The machine has to be necessarily controlled by some wired/wireless remote control mechanism at all stages of the game.
In case of wired mechanism, the wire must be slack at any point of time during the game. The total length of wire extending from the remote control to the machine must be minimum 3m.