I don't really know how to do 3D graphics that require rendering. The only kind I know to do is to piece together multiple pictures in different ways to show available direcetions to travel. Other than that, I am limited, because I don't even know what rendering means
Yeah, a math program contest might be too boring to do.
As for RPGs being too long, I don't think so, you would just have to limit the size, which would make the contest longer.
ONE THING I STILL DON'T KNOW:
Is the contest in ASM or Basic? If it is ASM, please give me a good heads-up so I can finish learning ASM (I stopped after about day 15 on the learn ASM in 28 day guide).
As for Platform and Sidescrolling, those would be OK, but not great.
One last comment, I really like the idea of having a single program to create, and whoever does the best job wins (much easier to judge). I did something similar for a contest I held at my school (one category was maze game - the obvious winner was the only guy that created a 3D maze game).
I still can't wait, no matter what it is!