I try to add some AI to a physics element.

My enemy is now a box but i can’t make it moving by some ai rules. I tried different way’s like applyForce and linearVelocity. The downside of apply force is that the force keeps adding up. linearVelocity is not working when the enemy is on the ground.

What i want is that the player has te feeling that the enemies (boxes) are walking/sliding around. I wan’t control over the speed and the way they are moving. Is this possible with a physics element and how do I apply this?