The Halloween festivities have begun in Pokemon GO, with Part 1 of the celebrations finally coming online in Niantic's popular AR title. The event marks the debut of Greavard and Houndstone, a Gen IX family from the vast expanse of Paldea. Apart from these debuts, there's a plethora of Ghost-type and Dark-type Pocket Monsters milling around. Players can also participate in event-exclusive Timed Research.Halloween Part 1 2023 runs from Thursday, October 19, at 10 am local time, to Thursday, October 26, at 10 am local time. This gives trainers around a week to enjoy everything that is on offer.There are two free and one paid Timed Research questlines for Halloween Part 1 2023. Read on to find out all the details for each of them.How to complete Pokemon GO Halloween Timed Research: All tasks and rewardsThe available tasks and rewards for Pokemon GO's Halloween Timed Research are as follows:Halloween Timed Research - Step 1 of 3Catch five Ghost-type Pokemon - 1000x StardustCatch 10 Ghost-type Pokemon - 1500 XPCatch 15 Ghost-type Pokemon - 1000x StardustRewards: Greavard encounter, 25x Poke Ball, 1000x StardustHalloween Timed Research - Step 2 of 3Take one snapshot of Ghost-type Pokemon - 1500x StardustCatch 10 Ghost-type Pokemon - 2000 XPCatch 15 Ghost-type Pokemon - 1500x StardustCatch 20 Ghost-type Pokemon - 3x Pinap BerryRewards: Greavard encounter, 20x Great Ball, 1000x StardustHalloween Timed Research - Step 3 of 3Take one snapshot of Ghost-type Pokemon - 2000x StardustCatch 25 Ghost-type Pokemon - 2000 XPCatch one Ghost-type Pokemon - 2000x StardustRewards: Greavard encounter, 5x Ultra Ball, 3x Pinap BerryHow to complete Pokemon GO Spiritomb Timed Research: All tasks and rewardsThe available tasks and rewards for the Spiritomb Timed Research are as follows:Spiritomb Limited Research - Step 1 of 1Earn 1080 Stardust - Misdreavus encounterEarn 1080 XP - Yamask encounterMake 108 Nice Throws - Pumpkaboo (Average) encounterUse 108 Berries to help catch Pokemon - Shuppet encounterEarn 10800 XP - Litwick encounterSpin 8 PokeStops or Gyms - Gastly encounterSpin 10 PokeStops or Gyms - Drifloon encounterRewards: Spiritomb encounter, 108 XP, 108x StardustHow to complete Pokemon GO Spooky Pose Timed Research: All tasks and rewardsThe paid Timed Research costs US$5 and will provide Ghost-type Pocket Monsters like Phantump and Dark-type creatures like Alolan Meowth as reward encounters.We will update this section with all the available tasks and rewards once they are available.Details regarding the second half of the Halloween festivities are already available. You can learn more about it in our Pokemon GO Halloween Part 2 guide.