OK. This is a tactic used for killing your opponent in 1 blow. Firts of all u need to make about 25-30 drones for minerlas and 15 for gas all the while making hatcheries(at least 20) sunken coloneis and spore colonies. Upgrades r a must ecpsialy armor. When u have this done make ultralisks unitl u max out then attack. Keep coming dont back down. DO NOT worry about air units. Just lket your ultras go crazy and soon your oppnent will be dead. U must have alot of minerlas and u must keep coming. Works best on mucho money maps.

CreepColony's Opinion: Personally I think Ultralisk are pieces of $hit. 200 minerals, 200 gas, and 6 underlings for a lousy 20 damage? C'mon, a tank in tank mode does more than that! I think if you wanna do an ultralisk rush, get dark swarm, otherwise they will get slaughtered. I suggest mass cracklings over ultralisks anyday.