Texas Stars
I shoot "Steel Madness" 2-3 times per month in Norco, CA. There are always a few stages with Texas Stars and sometimes multiple stars on a single stage. They're very hard to clear quickly as not only to you have to nail the steel plates rapidly, you have to do so in an order that keeps it from picking up too much momentum and spinning all the faster. A really good run will see the star move as little as possible.
There's an inevitable 'oh ****' when you walk into a stage and see a Texas star!