You would still have beaten him even without that Nydus worm trick, but yea, its cool when it works.
What currently bothers me is that Nydus worm sound which kinda makes it impossible to use them without enemy knowing about it.
It would be cool to be able to use Nudys worms for taking Island expansions without enemy knowing about it. Or moving your army to the other end of the map, so you can quickly attack from the suprising direction.
edit. Also: I hate sensor tower. For terran who can already control choke points really damn well, it also provides a a fool proof drop/worm protection.
I looked at it and can't just say nothing.
Both you and your opponent have considerable build order problems. By the end of the game the gameplay was fine but before that...
It is inefficient, doesn't take full advantage of the resources at your disposition, and slow.
Especially your opponent i would say, but I was quite surprised how your scouting hurt you. You had about 800 minerals by the end of your scouting session, which should have been spent. If you're to lose that much time micro'ing your scout, let him die. Better that than not spending just to save his life.
Also, you can make a spawning pool much earlier (1 minute earlier), which would have wtfpwned your opponent if you had made a speedling rush earlier. He had nothing, and by the time you had 5 zerglings in, you should instead have about 14 speedlings AND be teching.
Thus, your teching 8 minutes in is also way too slow.
Having 3000+ minerals and 0 gas and not using them in the mid-game is also not a good idea. Missing some gas? Build 5 hatcheries on 5 different expands so you will have some later on! You also forgot a couple times to fill in your extractors with drones.
Apart from them issues it was quite nice. The mass Hydralisk was clutch considering you had no idea he was going for void rays!
Heh, beginners.
it doesn't matter what you get, as long as you're fast and good at microing