Merge Monsters: Fusion Fight is a simulation game developed by Upland for Android users. The game is free to play and falls under the category of games and subcategory of simulation. The game requires you to merge and discover powerful animals and monsters to create a higher level creature with unique fighting abilities. With simple gameplay but a need for strategy, you must balance the number and strength of your team members for each battle.

The game is played by merging similar animals or monsters to create a new, stronger creature with a different fighting style. Each animal and monster is a secret that can only be unlocked at higher levels. You must create a strong battle formation by arranging your animals and monsters in a reasonable tactic to defeat the enemy. The enemy is getting stronger and changing after each level, so you must build your team accordingly.