I recently started work on a new bot, s (now in the arena). The name
is short for "small", as I found that a longer title actually
increased the file size. Working from a < 500 byte base, I brought it
up about 100 bytes, and still perform much poorer than 845 bytes, when
you consider double and team. I will probably continue work on this
project myself, but working on it gave me an idea:

Perhaps there could be regular challenges, like this? Ex: Smallest
bot, slowest moving "effective" (threshold percentage of 30% in at
least two categories?) bot, and longest surviving non-shooting bot. Of
course, this could be done through the normal arena system. A
challenge is posted, and somewhere on site the highest rankers in the
current challenge can be seen, as they rank up.

I admit that I haven't taken a serious look at the source code for the
arena, and therefore have no idea how difficult a challenge system
would be to implement on top of the current code, but I thought it
could be fun to throw in something on the side of trying to compete
with titans like Ionstorm and Spike.