step 1) drone 3 base really fast and scout him with like an overlord or overseer to confirm him playing mech
step 2) make a shitload of roaches with attack upgrades and roach speed. If he's playing regular mech remember to get overlord speed and drop
step 3) when he pushes wait til he's on your creep then get a good concave and run them all as close and as packed as you can get right up to his thors. If it turns out he's playing a more passive mech style with tanks and shit load the roaches up and just mass dump them whereever you like
step 4) Win the ******* game.
step 4.5) consider throwing in speed banes too if you want to be able to clear all the chaff around the thors like hellions and scvs and shit.
If for some reason you're still playing a video game at thist point take another base and make broodlords with +carapace upgrades for them.
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