entering

Wait - I don't get it. I've uploaded my bot into robocode repository, but I don't now how to get the download link to put on the participants page. The explaining paragraph says something about noting the corresponding id number. How would I get that id number? thanks

You should be able to see the ID in URL. Note that the Robocode Repository is not very stable, so maybe you should host your robot on your own hosting if available, or try some free service. Google Pages is proven to be working. Dropbox public link might work too, but hasn't been tested.