Collapse School 3's activities are as follows: 1. Horror Night Arena: In the game, players will play ghosts, zombies and other horror characters by attacking other players and completing specific missions to obtain rewards. 2. Jack-o-lantern Festival: On the day of the festival, players can make and exchange jack-o-lanterns in the game to light up the entire game world while completing jack-o-lantern related tasks to obtain rewards. 3. A party: Players can participate in a party in the game, invite friends to spend the whole of the year together, and complete party-related tasks to obtain rewards. 4. Character skins: All characters in the game will have their corresponding skins on the day of the game. Players can purchase and collect these skins to obtain additional rewards. These are some of the common gameplays of the Collapse School 3's halloween event. More detailed rules and rewards will be announced in future updates.