I played a few games. The important part is to learn how to use A and D in a collision to avoid falling down, but I had no time/patience to learn that. So I had

I played a few games. The important part is to learn how to use A and D in a collision to avoid falling down, but I had no time/patience to learn that. So I had like a 50% chance to die in each collision. So my strategy was to hide in a corner and wait until there are only a few sheeps left, and then try to be lucky only in the last few collisions. It's important to reward the fun strategies. My recommendation is to modify the sheep model to make it more stable in head collisions and less stable in side collisions. For example put the front legs closer and the back legs more open. Or something like that. You have to try it until the model gets more stable and the best strategy is to head the other sheeps. Also, when there are only 10 sheeps, they chase each other in circles, A to B and B to A, C to D and D to C, ... It would be nice to make the bots get bored and choose a random sheep to go after, to break the circles.