Really slow powerslides. When operating in mud, turning the front wheels won't turn the tractor, so many tractors have separate brakes for the left and right rear wheels. It's kind of amazing how quickly the tractor turns when you stomp just one of those brakes. The resulting effect is like a powerslide in that the front of the tractor "falls behind" the rear.

I learnt to drive on a Massey Ferguson 35. They can be "power-slid". It's just not very spectacular at 10km/h.

Speaking as someone who spent too much time on a farm as a kid, you can do a lot with a tractor.

The only thing you really have to watch out for is popping a wheelie and crushing yourself under it. Imagine my surprise when I found out that real cars aren't like that.