A pretty simple and straightforward achievement.
The game is buggy... just like the Xbox LIVE Arcade version on Xbox 360
. In this case, the game may crash when attempting to join/create a ranked match.
Due to the lack of players in the PC version, you should be able to pick any game you want. Mortal Kombat (i.e. MK1) usually has the least amount of players.
From the main menu:ONLINE KOMBAT -> RANKED MATCH
This will give you some search options. If a match is found, the game will automatically attempt to join it. If no match is found, a new lobby will be created. Just like most other games, you CANNOT invite a friend (or recent player) into a ranked match.
If you are boosting with a friend, have your friend search for a ranked match using the same search settings you used. PLAYER SKILL should always be set to "ANY SKILL". To make it easier, we'll assume that you're using the following:
GAME: MORTAL KOMBAT
PLAYER SKILL: ANY SKILL
Once you are in a match with another player, their name will be indicated by "PLAYER 2". That is, you will NOT know the player's Gamertag until the match starts.
Highlight READY and press A to show the other player that you are ready. The match will automatically begin in 15 seconds, even if the other player is NOT ready.
When the match begins, all you need to do is NOT get hit by your opponent and win (defeat your opponent with a flawless victory) in 1 round
. It doesn't matter which round you get a flawless in, but it only needs to be done in a single round.
If you did this correctly, you should have your achievement by the end of the first round. You can continue to win one more round and unlock the KONNECTED KILL achievement as well.