The game "Polyguns.io" is a multiplayer io shooting game with the ability to upgrade your character and weapons, which you can play alone or with friends. To start playing, enter a nickname and select a mode. To play one against all, click "Solo". If you intend to fight with a friend, choose "Teams". There click "Create a Party". Click the "Copy" button to copy the link and send it to a friend. To join by link, paste it into the column and click "Join". Once on the field, shoot targets and enemies to get experience points. An upgrade menu will appear on the left: adding health, reload speed, weapon damage. Weapons will drop at the bottom of the playing field. Change skins on the main page of the game.