Professor Oak (boss)

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Professor Oak
Professor Oak boss NPC.png
LocationCinnabar Lab Room 2
Cooldown time12 days
Dates active2016—present
Basic requirements
  • Be Kanto Champion

"Are you ready to show me what Pokemon you have been training?"

—Professor Oak

The Professor Oak boss is the boss-NPC incarnation of Professor Oak—the preeminent Pokémon professor of the Kanto region. He homologizes to Professor Elm, Professor Birch and Professor Rowan of the Johto, Hoenn and Sinnoh regions, respectively, as Kanto's professorial boss NPC.

Because of his byjob as a distributor starter Pokémon, his trove of prizes include Kanto's own subset of starter Pokémon (exclusive of the quaternary selectable in Pikachu), making him a potentially prolific alternative to hunting for the starter Pokémon in the wild.

Boss rework 2019

Oak was part of the Boss rework in 2019 and was updated at the 10th January 2019. The boss rework was issued and is still ongoing to improve the boss NPC's in general. All reworked bosses are coded in Python and not in Xanascript anymore, which gives new opportunities. Reworked bosses can now have held items as well. One of the biggest benefits is, that the Python script sees when if the server crashed in order to not count a lose in case the player fought against the boss while the server crashed. In such a case the player can simply re-fight the boss.

The boss rework implies a challenge for players on any experience level who do enjoy doing bosses because of the three difficulty level every not story related boss has, which ensures that bosses are challengable for newer players and also be a chellange for those who have a high Pokémon knowledge. Boss teams are decisively reworked and only contain level 100 Pokémon. EVs and hold items do vary among other things - also depending on the difficulty level.

  • Easy: bosses have no EVs and no hold items; as well as a weakened moveset. Consecutive win rewards are also not available.
  • Medium: bosses have 252 EVs in each stat and hold items.
  • Hard: bosses have 400 EVs in each stat and hold items. Furthermore, the player is not allowed to use in-battle items such as Revives.

Challenging Professor Oak

Professor Oak can be found in the upper-rightmost corner in room 2 of Cinnabar Island's research lab. If Professor Oak is found in his lectural position, interact with him; this will invisibilize him and visibilize him in the boss-NPC position, effectively transposing his location to allow you to challenge the boss.

Interacting with him will automatically initiate a battle contingent that you have completed the Kanto League. If you have previously battled him, it will be a 12-day cooldown time to rechallenge him. In case you should have a playing time under 100 hours, Oak will give you a warning if you are really sure to fight him.



Professor Oak's Lineup
Professor Oak.png
Bold Levitate None
Modest Overgrow None
Timid Blaze None
Modest Torrent None
Jolly Sheer Force None
Adamant Multiscale None
  • Emboldened moves avail from a STAB bonus when deployed by that Pokémon.
  • Italicized moves are functionally broken; see their individualized pages for more information.


Professor Oak's Lineup
Professor Oak.png
Bold Levitate Leftovers
Modest Overgrow Black Sludge
Random Tough Claws Charizardite X
Modest Torrent Sitrus Berry
Jolly Sheer Force Life Orb
Adamant Multiscale Lum Berry
  • Emboldened moves avail from a STAB bonus when deployed by that Pokémon.
  • Italicized moves are functionally broken; see their individualized pages for more information.


The standard subsets of rewards will be randomized and rewarded each time; however, upon defeating him three-consecutive times, you will get a extra reward on the difficulty level Medium and Hard while Hard gives slightly better rewards.

There is no shiny counterpart of Pokémon rewarded from the randomized prizeset; only the selectable prizes have one, which is 1/4,096 in fractional notation (0.0244%, in percental notation).

All rewarded Pokémon will be initialized at level 20.

Reworked bosses such as Oak have rewards depending on the difficulty level you beat them. As harder the difficulty as more valuable is the reward normally. The exact reward is random generated based on a list of possible rewards and contains at least a money reward. There are three difficulty level: Easy, Medium and Hard. For extra rewards, the Medium and Hard level have a three-time win streak.

Tier 1: A random amount of common items which depends on the boss, like Focus Sashes, Weakness Policies, Air Balloons,Lum Berries or Sitrus Berries.

Tier 2: A random amount of more valuable items, mixed with some high valuable rewards depending on the boss, like PP Up's, Rare Candies, Small Train Ticket or Corphish.

Tier 3: Rare Pokémon depending on the boss, like Gible, Dratini, Bunnelby or Scyther.

Easy: 85% chance for tier 1, 10% for tier 2 and 5% for tier 3 rewards, 5-10k money reward.

Medium: 80% chance for tier 1, 10% for tier 2 and 10% for tier 3 rewards, 12-30k money reward, +2 PvE Coins.

Hard: 60% chance for tier 1, 25% for tier 2 and 15% for tier 3 rewards, 20-40k money reward, +4 PvE Coins.

The possible rewarded Pokémon on the hard mode are considered as slightly more valuable than those you may get on the Medium mode.

Randomized subset

All possible rewards are listed below.


Pokédex NumberPokémonType 1Type 2Reward Tier
#001 1Icon.png Bulbasaur Grass Poison 2
#004 4Icon.png Charmander Fire 2
#007 7Icon.png Squirtle Water 2
#147 147Icon.png Dratini Dragon 3
#479 479Icon.png Rotom Electric Ghost 3


Item Quantity Reward Tier
Haban Berry.png Haban Berry 5-10 1
Occa Berry.png Occa Berry 5-10 1
Passho Berry.png Passho Berry 5-10 1
Rindo Berry.png Rindo Berry 5-10 1
PP Up.png PP Up 3-8 2
Rare Candy.png Rare Candy 3-8 2

Three-consecutive wins

After being rewarded some of the abovementioned items, you will also be prompted to select one of these Pokémon as an additional reward..

Pokédex NumberPokémonType 1Type 2Reward Tier
#001 1Icon.png Bulbasaur Grass Poison Medium/Hard
#004 4Icon.png Charmander Fire Medium/Hard
#007 7Icon.png Squirtle Water Medium/Hard
#147 147Icon.png Dratini Dragon Medium/Hard