A free program for Android, by Boss Level Studio.

Monster Rampage: Merge Rainbow mobile combines strategy and thrill in this fun and exciting monster-merging game. The mechanics are simple: you have to combine similar characters to unlock bigger and stronger ones. Arrange your heroes across the board strategically and ensure that each part is covered. You would not want any enemy finding a blind spot and using that to their advantage!

There are tons of colorful and bizarre characters to unlock as well as lots of challenging levels and bosses that will keep you on your toes. Download and install this game on any compatible Android device for free today!