1) A great way to get a reaction from players is start reciting lyrics from a song you know everyone knows, and hates. You keep doin it long enough and players might get annoyed enough to leave. Whatever the case, the response is amusing
2) Build Pylons all over the map.. try and make them hard to find. I say use Pylons because resources are tight when you try doing this in the beginning and because Zerg require enough creep to put random building everywhere, plus are easy to see. Doing this in the beginning may piss off your teammates but its amusing when you get chased, especially when they cant find you.
3) Nuking allies... lol.. enough said
4) Bsing, i dont suggest this all the time, but once in awhile it is fun. Just remember there are other people out there that take the game way to seriously and will hate you forever for backstabbing.
5) SCV/Drone/Probe rush.. sure sometimes it works.. but its more amusing then it is effective.
6) And last but definiately my favorite... type [enter] to chat and then type a bunch of spaces and Nuclear Launch Detected so that is it centered on the screen. I suggest you experiement a little in single player games before attempting it on multiplayer to see how many spaces it takes to look realistic. The reaction you get from people when this is done early in the game is hilarious
Submissions:
7) Make enough space like #6 and type Cheat Enabled so that it is centered on the screen. Typing Cheat Disabled also has some interesting results.
8) Pause the game periodically to piss people off. Especially when timing is a necessity to mess up your allies or opponents and give you more time to think.
9) Share vision with your enemies so they can destroy you or your ally quicker.
-----
10) Build buildings in your allies basses where they need the space. If they try to kill your building yell out BS constantly and hopefully your other allies will attack the allies whos base you were building in.
11) Type stupid stuff like..."what are the blue thingys in my base?", "holy sh*t there are buildings in my base! HELP!"...ect...(just think of any n00bish thing you can think of.)
12) Sort of like BS'ing but its more amusing. Offer to build defense for your allies and do not include "allied victory" while you are allied to your allies. Then at the right momment (when they are leaving their base with a lot of units, when the game is finished, or you just get bored) un-ally with them and watch the comments roll in and hope you get a lot of kills. (photon cannons most prefered for this.)
13) Like number 10 and 12 together but must be accomplished with zerg to be most annoying. Build hatcheries in your allies base and build sunkken colonies so the swamp expands and makes it dificult for them to build at their own base, and if they try to attack you you have the sukken colonies to attack back. Thats a fun one if you ask me hahaha.
-----
14) Ask you allys stupid questions (e.g. "What is this weird slimy stuff around my base?", and "Why are these minerals spread out and only have 1500 instead of 50000?")
15) Be sure to worker rush your allys, it really seems to get them riled up. Remember the '/squelch %player-name' command to make them stop whispering bad stuff to you!
-----
16) As Terran, make a wall of supply depots around your ally's base. Put siege tanks around the outside of the supply depots. Your ally can't come out so they attack your supply depots. Then you have an excuse to use your siege tanks...
17) Ok, first for this one get LOTS of minerals cause your gonnna build a heck of a lot of command centers or somthing to cover up your allies's base so they cant see their stuff and can't build. If they attack you call your other allies if you have any or send a rush that will at least wipe out their anti-air.
-----
18) Be protoss and make, "The Great Wall of China" out of photon cannons and pylons.
X = Photon
O = Pylon
X X X X X X X X X X X X X X
X O X O X O X O X O X O X
X X X X X X X X X X X X X X
19)
1. Create a 2v2 melee game.
2. Ask 2 friends to go onto the enemy team
3. Get a noob to ally to yourself
4. Go spy on your enemy and turn off shared vision (Tell him you're losing connection)
5. Go back and turn it back on. ("Ok connection's back")
6. Tell your enemy friends to build only air
7. Tell your ally enemy to build only zealots, zerglings or firebats.
8. Go to your ally enemy base and turn on shared vision for your enemy friends
9. Watch your ally enemy die