This game is called monster rush. As you see, you need to play as a monster rushing in the scene to grow bigger and bigger. Otherwise, you cannot survive.
All the other small monsters are your food. Just eat them and you can get stronger and bigger. If you happen to run into another bigger monster, you will fail and have to retry.
It's an evolution simulation game teaching us what is a monster's world. Get fun from here and have a try!
