Build a Boxy Boo battle monster by combining and producing more Boxy Boos. Merge the same rainbow Boxy Boo monsters to become better, bigger and stronger. Enter the world of Boxy Boo monsters and learn the rules of grand battle in this awesome Boxy Boo combo rainbow buddy game.

How to play Boxy Boo Merge Monsters:
- Control your rainbow Boxy Boo Merge monster army and combine them wisely to kill the rivals.
- Unlock new and more powerful monster creatures after beating challenges and using the right combinations.
- Use your finger to draw and grow your friend's monster Boxy Boo rainbow to evolve it.
- Match the same monster units to combine them into a higher form.
- Get ready and prepare yourself for war, beat your enemies to death.