Opposites Unite: free puzzle app game for iphone ipad etc

 

Victor Twigge's Opposites Unite is one of those: 'slide all the tiles as far as they can' and slide them all together at the same time. The objective is to unite the plus and minus symbols.

Note: the blue squares are locked in place. The green squares will travel and will help/hinder you.  Of course, there are some wormholes. In order for the plus or minus signs to use a wormhole, it must land on the ENTER square, not merely pass over it.

Most interesting: you can't tell at the beginning where the signs will unite.

There are 50 levels and at the moment I'm on level 44..
https://itunes.apple.com/us/app/opposites-unite/id1004023698?mt=8