Security Check gets easier the moment you stop fighting the moving belts directly. Build BELT IS PUSH, clear the patrol lane, then finish the win rule on a board that no longer keeps shifting under you.
Why It's Hard Enemies patrol in tight loops and there are conveyor belts (Belt) pushing you around. You need to either stop the belts or make yourself immune to enemies.
PUSH accessible from both sides of the belt lane if possible.Create BELT IS PUSH so the conveyor belts no longer move automatically. Then you can push them aside like boxes.
BELT IS PUSH before you try to route all the way to the flag.FLAG IS WIN, then close the level on the clean lane you just created.Security Check is easier once the board stops moving on its own. BELT IS PUSH converts the level from a reaction puzzle into a routing puzzle, which gives you time to solve the patrol and finish line separately.