The process to do that is simple: you program a series of orders before the robots begin to leave their hiding spots. For example, you can set up a rule that tells them to turn left when they get to a wall, or to turn right when they get to a dangerous box. If they crash into anything while carrying out the orders, they'll explode.
Your aim is to help all the robots in each level (at the start you'll have just one) reach the other box without exploding into a thousand pieces. To do so, you'll need to take a good look at the scenes, calculate the possibilities, then test them out (with the resulting explosions) as many times as it takes.
Pragmatica is a fun puzzle game that's reminiscent at times of ChuChu Rocket!, but has more depth than the SEGA Dreamcast classic.