Rampage : Giant Monsters for Android

According to the story, a certain corporation found out how to grow giant prehistoric animals. To test them, the corporation sends them to different cities to destroy everything they meet on the way. In each level you can upgrade the monster to a certain level and complete a task. 

The idea of the game is upgrading the prehistoric monster. The player's monster can walk across the city and smash people on the way. It is assumed that the monster eats them and levels up due to this. There is a multiplayer mode where there are several monsters in one city. Then they can fight one against another. Monster of a higher level wins.