It basicaly just reproduces realy fast, and uses forced counter leeching through mem shots (It doesn't even use venom) on all larger oponents.
On small oponents it assumes they're going to try something funy with ties and just pushes -6 into tieloc, so instead of doing some anoying mem attack it starts to feed you.
The point is larger bots can eat you through the tie, so large bot = counter leeching.
Small bots can't eat much through the tie so they'll likely try to mess something up instead, or use counter leeching, but to do that you usualy push a positive value into tieval so pushing -6 into tieloc makes it feed you.
So it's not that hard to figure out how to beat this thing, it just works well right now because all the bots follow a strick pattern according to their size... but I can already think of some ways to counter this behavior.
Anyway the point wasn't to make something invincible, just to beat Etch and keep the thing as simple as possible.
6 small simple genes, nothing fancy
I was thinking of trying to use tmemloc to track what the oponent was doing and stuff like that to make some propper tie defences, but I kinda like how this seems to work without doing anything advanced. It has a hard time killing some bots, but eventualy everything dies from starvation if the fruit flies don't kill it. (Some fights will take a while, especialy when running it against pacifist and etch)