Minecraft: Edition

Firstly this must be done in a public match so either grab a friend/booster or a second controller and create a tumble mini game and set it public and snowballs.

Once in the lobby press as soon as possible to ready up and start the match with just you. Have the person going for the achievement stand on the end of the last level of the map but facing inwards then have the person not going for the achievement stand in front of them.

Then the person going for the achievement will spam as they walk backwards off the edge, might be an idea to aim higher too to avoid hitting the block below.

Heres a video of me doing it using 4 controllers, I'm top left (was going for something else at the same time)

I did this multiple times in a private game but I could never get it to unlock. Once I switched it to public I got it on my first attempt. So if you are having issues make sure you try doing it in a public game.

Note. You can get all but one of the new minigame achievements with a second controller. Makes it so much easier.

If boosting with a friend, get them too stand in the centre of the bottom floor on the snowball fight, and try and do a long range hit, when you are comfortable with the range and you know you can hit it, throw the snowball and back yourself into the lava, it will count aslong as you are falling after you have thrown the shot.