anyone have this yet? if so, what the heck is it and how do you get it? lol

I just won an online match and got it..

This achievement is obtained on Multiplayer. You will notice on the bottom of the screen, there is a meter. Once filled, you can press the Y button to send a Meemoo to your opponents side. The achievement is unlocked by beating the stage in multiplayer without messing up a single piece after your opponent sends an enemy over to your side.

Thank you!  had no idea it was multiplayer.

Do the multiplayer acheivements have to be done online, or is local sufficient?

 eghsbr wrote:

Do the multiplayer acheivements have to be done online, or is local sufficient?

 

Must be done online.