Boss Rush

Boss Rush is a game occasionally held during weekly events consisting of a series of bosses a player must defeat in succession in order to make it to the finish line.

The entrance to the Boss Rush Lobby is generally found in the Events Hub of the Delite Plaza, however it's only accessible when the respective weekly event takes place.

Rules
In order to enter the Boss Rush event, there are a few rules/restrictions the player must keep in mind:
 * The player can bring a full team of up to 4 Pokémon
 * All Pokémon will be set to level 30
 * All Pokémon will keep their current moves
 * Parties are not allowed
 * Wind is present in all boss maps

Once a player enters a boss map, the only way out is a warp which is blocked until the player defeats all standing bosses, or is themselves defeated in combat resulting in a loss.

There are a total of five sets of bosses the player must clear in order to reach the finish line. After each boss battle, the player will be able to completely heal up the surviving members of their team at the heal tiles in the checkpoint maps. Every such checkpoint map alludes to the following boss via its scenery.

Bittersweet Vale
The player encounters the first set of bosses in Bittersweet Vale. There are a total of three bosses on this map.
 * Weather: Rain

! style="background:#89a9d1" class="unsortable" |Icon ! style="background:#89a9d1"|Dex No ! style="background:#89a9d1"|Pokémon ! style="background:#89a9d1"|Type ! style="background:#89a9d1"|Moveset
 * - style="background:#"
 * MS Vileplume
 * Vileplume
 * Grass/Poison
 * style="text-align:left" |
 * Weather Ball
 * Worry Seed
 * Mega Drain
 * - style="background:#"
 * MS Roselia
 * Roselia
 * Grass/Poison
 * style="text-align:left" |
 * Growth
 * - style="background:#"
 * MS Vespiquen
 * Vespiquen
 * Bug/Flying
 * style="text-align:left" |
 * Bug Buzz
 * }
 * style="text-align:left" |
 * Bug Buzz
 * }

Stonecore
The second set of bosses are found in Stonecore. This map consists of three bosses.
 * Weather: Clear

! style="background:#89a9d1" class="unsortable" |Icon ! style="background:#89a9d1"|Dex No ! style="background:#89a9d1"|Pokémon ! style="background:#89a9d1"|Type ! style="background:#89a9d1"|Moveset
 * - style="background:#"
 * MS Golem
 * Golem
 * Rock/Ground
 * style="text-align:left" |
 * Dig
 * - style="background:#"
 * MS Rhydon
 * Rhydon
 * Ground/Rock
 * style="text-align:left" |
 * Rock Slide
 * Megahorn
 * Stomp
 * Rock Smash
 * - style="background:#"
 * MS Rhyperior
 * Rhyperior
 * Ground/Rock
 * style="text-align:left" |
 * Stone Edge
 * Earthquake
 * }
 * Stone Edge
 * Earthquake
 * }

Abyssal Depths
The third set of bosses are found in Abyssal Depths. This map consists of three bosses.
 * Weather: Rain

! style="background:#89a9d1" class="unsortable" |Icon ! style="background:#89a9d1"|Dex No ! style="background:#89a9d1"|Pokémon ! style="background:#89a9d1"|Type ! style="background:#89a9d1"|Moveset
 * - style="background:#"
 * MS Gorebyss
 * Gorebyss
 * Water
 * style="text-align:left" |
 * Scald
 * Water Pulse
 * Ice Beam
 * - style="background:#"
 * MS Lapras
 * Lapras
 * Water/Ice
 * style="text-align:left" |
 * Dragon Pulse
 * Thunderbolt
 * - style="background:#"
 * MS Huntail
 * Huntail
 * Water
 * style="text-align:left" |
 * Substitute
 * Waterfall
 * Rock Tomb
 * }
 * Waterfall
 * Rock Tomb
 * }

Hailstorm Tundra
The fourth set of bosses are found in Hailstorm Tundra. This map consists of four bosses.
 * Weather: Snowstorm

! style="background:#89a9d1" class="unsortable" |Icon ! style="background:#89a9d1"|Dex No ! style="background:#89a9d1"|Pokémon ! style="background:#89a9d1"|Type ! style="background:#89a9d1"|Moveset
 * - style="background:#"
 * MS Umbreon
 * Umbreon
 * Dark
 * style="text-align:left" |
 * Foul Play
 * Moonlight
 * Helping Hand
 * Toxic
 * - style="background:#"
 * MS Froslass
 * Froslass
 * Ice/Ghost
 * style="text-align:left" |
 * Icy Wind
 * Confuse Ray
 * Shadow Ball
 * Torment
 * - style="background:#"
 * MS Beartic
 * Beartic
 * Ice
 * style="text-align:left" |
 * Avalanche
 * Icicle Crash
 * - style="background:#"
 * MS Regice
 * Regice
 * Ice
 * style="text-align:left" |
 * Charge Beam
 * Ice Beam
 * }
 * style="text-align:left" |
 * Charge Beam
 * Ice Beam
 * }

Nevermore Terminus
Nevermore Terminus has the final set of bosses the player must clear before reaching the finish line. It consists of four bosses.
 * Weather: Clear

! style="background:#89a9d1" class="unsortable" |Icon ! style="background:#89a9d1"|Dex No ! style="background:#89a9d1"|Pokémon ! style="background:#89a9d1"|Type ! style="background:#89a9d1"|Moveset
 * - style="background:#"
 * MS Lucario
 * Lucario (Erkenwald)
 * Fighting/Steel
 * style="text-align:left" |
 * - style="background:#"
 * MS Dragonair
 * Dragonair (Alistar)
 * Dragon
 * style="text-align:left" |
 * - style="background:#"
 * MS Kabutops
 * Kabutops (Mogok)
 * Rock/Water
 * style="text-align:left" |
 * - style="background:#"
 * MS Grovyle
 * Grovyle (Silvan)
 * Grass
 * style="text-align:left" |
 * }
 * Grovyle (Silvan)
 * Grass
 * style="text-align:left" |
 * }

Rewards
All players who manage to reach the finish line are rewarded with event tokens, however the 9 fastest players may additionally receive bonus tokens alongside a 1st, 2nd, or 3rd place ribbon.

Trivia

 * Boss Rush didn't show up in weekly events for nearly 3 years, until December 2019 when it finally made its return.