September is another busy month for Pokemon Go players. Niantic has a variety of events and activities lined up for the game over the next few weeks, from the Mega Evolution-themed Mega September event to a new Victini Special Research. There's also September's Community Day, which takes place on Sunday, September 20. To help you prepare for the event, we've rounded up everything you need to know about September's Community Day below.

September's Featured Pokemon: Porygon

The Virtual Pokemon Porygon is the featured Pokemon for September's Community Day. Throughout the event, Porygon will spawn in the wild much more frequently than normal, making this a good opportunity to stock up on Porygon Candy. On top of that, you'll be able to catch a Shiny Porygon in the game for the first time during the event.

September's Community Day Move: Tri Attack

If you can evolve Porygon2 (Porygon's evolved form) into Porygon-Z up to two hours after September's Community Day ends, it'll learn the event-exclusive move Tri Attack. This marks the first time this attack will be available in Pokemon Go, and it's a useful one; in addition to dealing damage, Tri Attack has a chance of lowering the opposing Pokemon's Attack and Defense stats.