Best Friends Forever Achievement
Best Friends Forever30
Finish a season in Online Friendlies
Nothing difficult here either. Find the Online Friendlies tile in the Play tab on the Menu and invite a friend. You can quit the first 2 matches after 5 minutes, but the 3rd one has to be finished. Set is to 2 minute halves to do it the quickest.
If you want to boost, please use the Achievement Trading Thread.