CoCoMonster.io is a funny multiplayer game where you compete against other players online. You play as a tiny creature called the "CoCo", and you need to collect as much jelly as you can to grow and become the biggest CoCo ever. You can play with friends, and you can also compete against them online.

The game is free to play and easy to control. You only need to tap to move and swipe to collect jelly. There is also a battle system where you can fight against other players. The goal is to defeat them and win the matches.