for some reason i can't play this, but here's what i did in the first one:
infect someone
upgrade virus SLIGHTLY (coughing and sneezing is always good to have)
have low visibility, but high spredability (forgot name of it)
focus on SPREADING virus, at least for now.
when about 90% or more of the world is infected, max out everything to kill them, they will infect each other, but only do this if you have AT LEAST 100 viruses in each zone.
enjoy :P, dirk399
ok i admit that ''up the hump'' wont work with a catapult since the pink block is too large, BUT i made another multi-use design, PRESENTING TO YOU: the snake http://FantasticContraption.com/?designId=3160464
easiest way to solve all maps (except from those who needs a chain) http://FantasticContraption.com/?designId=3159442
easy to make, it only looks complicated