"I suck horribly (like, 20% win rate) vs mech openings...i feel like i must be missing something hardcore"
Make a sunken to stop the initial vult and then a hydra den walling your nat incase of speed vults and get some hydras incase of wraiths. Then get muta and the close 3rd base and 4th base. Get +1 air armour and continue making muta for a long while, pinning Terran back. Don’t actually engage the goliaths in the terran main, only attack scvs and force the goliaths to hang around the terran main. If the goliaths are in the terran main then the muta are doing their job. If terran moves out too early with goliaths, back stab with the muta, force the goliaths home to defend. You can see Zero gets a 6th hat at his 3rd base and a 7th hat at his 4th base. Then get hydras with +1 attack and speed overlords. You can see Zero actually gets +2 air armour as well.
The first big tip is to make muta, then hydra.
The second big tip is to stay on lair and not get hive, and get muta, then hydra!
The third big tip is to kill the army. When terran finally comes at you with his proper tank supported army, don’t back stab, kill his army. Fight him in the middle of the map with a massive surround. If you don’t kill it straight away, re-mass for as long as possible then fight his army head on again and keep chipping away at it until it dies. You have to kill the terran army or it will roll you.
Don’t take a 5th base too early, you will die. Don’t get lurkers, you will die. Don’t just ‘get a lot of shit’ (the classic Day9 quote that is still heard, unfairly to him). No, instead get muta, then hydra, stay on 4 base and stay on lair. When terran secures his 3rd, you can look to take your 5th base and hive for +3 upgrades eventually. If it properly goes to lategame, you can stay on muta and hydra, that’s fine. You do not need hive tech units. A good final unit composition is hydra with queens and spawn broodling instead of the muta. You can use drop tech to finish him off if he turtles.
Zero vs Ssak on FS Draemong Starleague Ro16 May 2015