I should have been more limiting with the rules of the contest, but I kinda just let anyone do whatever they wanted after a while. Let me just say that multiple CTF bases, assault, SCE's, and no borders around the level are generally bad ideas in CTF. Multiple CTF bases are glitchy and don't work as they should. Assault is like a lot of destruct blocks and it's just another obstacle that isn't needed. SCE's like shooting bullets can potentially crash JJ2. And if you don't put borders around your level, there's the possibility of getting the flag bug.

FYI, the flag bug is when the text of someone capturing flag is repeated over and over again on your screen. If you have the flag and you touch the edge of the level, it will create the flag bug for other players. I suggest a border of at least 2 solid tiles (3 tiles recommended) to prevent this.