just some rocks to place and a headlight

technically I fixed the thrust to be more correlated to the input value,, so they don't always look on full blast. 

mostly though, just to add some spice I put some large rocks that can be placed to make obstacles,, but they do make nice tunnels too if you take the time. I also added some much larger hoops for those players who want to crank their power to 80 million.