Maybe out of retirement?
The third room is easy, it's the fourth room where it becomes problematic. I haven't yet found a proper way to complete it, the only thing I thought of was spindash-jumping out of one of the pipes to the exit. But no, the third room was awesome, just like the first two ones. Hell, even the fourth one is probably great, I just haven't found the solution yet. Great puzzle map, but incidentally an awful Race map.