Tandemaus (Pokémon)

Tandemaus's mouths open

Tandemaus is a Pokémon comprising two separate mouse-like rodent Pokémon which work together as one, much like Exeggcute or Falinks. Each individual is small, white, and bipedal, and has a spherical head with large ears and stubby limbs with large paws. Each one also has two black beady eyes, a tiny black nose with short whiskers, and a long tail which curls up and ends with a bulbous tip. One of the pair has a light-gray patch of fur surrounding its chest which resembles a shirt, while the other has a light-gray patch of fur surrounding its legs, which resembles a pair of pants. When they open their mouths, which take up over half of their faces when fully open, a single upper incisor can be seen on the insides of each one.

The pair that forms Tandemaus sticks together no matter what. They exhibit great teamwork: they share any food they find equally within the pair, and they build their nest together using materials they've gathered with their incisors. Tandemaus's evolution into Maushold is considered somewhat of a mystery, as the little individuals that form the group seem to appear out of nowhere.

Tandemaus and its evolved form, Maushold, are the only known Pokémon capable of learning the move Population Bomb.

Evolution

Tandemaus evolves into Maushold.

(For specifics on this Pokémon's Evolution in the games, refer to Game data→Evolution data.)

Unevolved Tandemaus  Normal	→	First Evolution Maushold Family of Four  Normal
	→	First Evolution Maushold Family of Three  Normal

Pokédex entries

Tandemaus in the Paldea Pokédex	Tandemaus in the Kitakami Pokédex

Game locations

In events

In-game events

Poké Portal News

Held items

Stats

Base stats

Type effectiveness

Learnset

By leveling up

By TM

Generation IX Other generations: None

TM   Move   Type   Cat.   Pwr.   Acc.   PP  TM001 TM001 Take Down Normal Physical 09090 085}}85% 20 TM002 TM002 Charm Fairy Status 0000— 100}}100% 20 TM003 TM003 Fake Tears Dark Status 0000— 100}}100% 20 TM004 TM004 Agility Psychic Status 0000— 00—}}—% 30 TM005 TM005 Mud-Slap Ground Special 02020 100}}100% 10 TM007 TM007 Protect Normal Status 0000— 00—}}—% 10 TM011 TM011 Water Pulse Water Special 06060 100}}100% 20 TM012 TM012 Low Kick Fighting Physical 0000— 100}}100% 20 TM018 TM018 Thief Dark Physical 06060 100}}100% 25 TM025 TM025 Facade Normal Physical 07070 100}}100% 20 TM027 TM027 Aerial Ace Flying Physical 06060 00—}}—% 20 TM032 TM032 Swift Normal Special 06060 00—}}—% 20 TM035 TM035 Mud Shot Ground Special 05555 095}}95% 15 TM039 TM039 Low Sweep Fighting Physical 06565 100}}100% 20 TM047 TM047 Endure Normal Status 0000— 00—}}—% 10 TM049 TM049 Sunny Day Fire Status 0000— 00—}}—% 5 TM050 TM050 Rain Dance Water Status 0000— 00—}}—% 5 TM055 TM055 Dig Ground Physical 08080 100}}100% 10 TM056 TM056 Bullet Seed Grass Physical 02525 100}}100% 30 TM060 TM060 U-turn Bug Physical 07070 100}}100% 20 TM061 TM061 Shadow Claw Ghost Physical 07070 100}}100% 15 TM070 TM070 Sleep Talk Normal Status 0000— 00—}}—% 10 TM071 TM071 Seed Bomb Grass Physical 08080 100}}100% 15 TM081 TM081 Grass Knot Grass Special 0000— 100}}100% 20 TM082 TM082 Thunder Wave Electric Status 0000— 090}}90% 20 TM085 TM085 Rest Psychic Status 0000— 00—}}—% 5 TM087 TM087 Taunt Dark Status 0000— 100}}100% 20 TM103 TM103 Substitute Normal Status 0000— 00—}}—% 10 TM108 TM108 Crunch Dark Physical 08080 100}}100% 15 TM117 TM117 Hyper Voice Normal Special 09090 100}}100% 10 TM122 TM122 Encore Normal Status 0000— 100}}100% 5 TM127 TM127 Play Rough Fairy Physical 09090 090}}90% 10 TM130 TM130 Helping Hand Normal Status 0000— 00—}}—% 20 TM132 TM132 Baton Pass Normal Status 0000— 00—}}—% 40 TM171 TM171 Tera Blast Normal Special 08080 100}}100% 10 TM183 TM183 Super Fang Normal Physical 0000— 090}}90% 10 TM204 TM204 Double-Edge Normal Physical 120120 100}}100% 15

Bold indicates a move that gets STAB when used by Tandemaus Italic indicates a move that gets STAB only when used by an Evolution or an alternate form of Tandemaus

By breeding

Generation IX Other generations: None

Parent   Move   Type   Cat.   Pwr.   Acc.   PP  * After You Normal Status — —% 15 Baton Pass Normal Status — —% 40 * Bite Dark Physical 60 100% 25 * Feint Normal Physical 30 100% 10 * Switcheroo Dark Status — 100% 10 * Tickle Normal Status — 100% 20

Moves marked with an asterisk (*) must be chain bred onto Tandemaus Bold indicates a move that gets STAB when used by Tandemaus Italic indicates a move that gets STAB only when used by an Evolution of Tandemaus

Side game data

Pokémon GO Base HP: 137 Base Attack: 98 Base Defense: 90 Egg Distance: N/A Buddy Distance: 1 km Evolution Requirement: 50 Fast Attacks: Take Down, Mud Shot, Bullet Seed Charged Attacks: Swift, Play Rough, Crunch

Evolution data

The form of Maushold that Tandemaus evolves into is determined based on its encryption constant, with a 99% chance of it evolving into the Family of Four form and a 1% chance of it evolving into the Family of Three form. This is not the case for wild Maushold encountered in Tera Raid Battles, as these will have a predetermined form (Family of Three in 4★ raids or Family of Four in 6★ raids) regardless of their encryption constant value.

Unevolved Tandemaus  Normal	+ + Level 25 (only in battle, with a certain encryption constant) →	First Evolution Maushold Family of Four  Normal
	+ + Level 25 (only in battle, with a certain encryption constant) →	First Evolution Maushold Family of Three  Normal

Sprites

This Pokémon was unavailable prior to Generation IX.
Cross-Generation HOME

For other sprites and images, please see Tandemaus images on the Bulbagarden Archives.

Main series

Major appearances

Minor appearances

In The SOS is from Tandemaus?, the image of a Tandemaus was seen on Liko's Rotom Phone. In the episode, a Maushold was initially mistaken for a Tandemaus until the two little ones were discovered.

Pokédex entries

Main article: Tandemaus (TCG)

• Tandemaus and its evolved form were designed by Megumi Mizutani.^[1]
• Tandemaus and its evolved form are the only gender unknown Pokémon in the Field Egg Group, and the only Normal-type Pokémon to consist of multiple bodies.
• Tandemaus is the only Pokémon that can skip the Evolution animation sequence when evolving.
• Tandemaus was briefly shown in a pre-release trailer on 6 October 2022 alongside Nacli and Squawkabilly, though it remained officially unrevealed until the release of Pokémon Scarlet and Violet.

Origin

Tandemaus seems to be based on a pair of mice. Its appearance resembles dollhouse figurines such as the Japanese doll line Sylvanian Families.

Name origin

Tandemaus may be a combination of tandem and Maus (German for mouse).

Wakkanezumi may be a combination of 輪っか wakka (loop) and 鼠 nezumi (mouse).

• Pokémon fusion