Assuming this weapon gave no sudden shocks, this would be my plan.

First the robot description,

Ali Spawn again shaped shell.
Actuator powered flipper - flipper width less than 3 hawkers - Stops at 90 degrees to the ground.
4 drill motors aligned like spawn again€™s wheels.


The plan.
First figure out where tornado€™s center of weight is.
Find out where mini spawn€™s centre of weight is
Ram straight underneath Tornado and align the center of gravities.
Lift the flipper.
Slowly carry Tornado for 10 secs is it?

Hopefully you will be left Tornado with 4 wheels off the floor with both weights pressing on mini spawn€™s wheels. It€™ll stall the motors eventually but it€™s only 10 seconds right?

In which case. Our little friend has won.

Only drawback is: Violent shocks could make Tornado fall off.