Population Bomb (move)

From Bulbapedia, the community-driven Pokémon encyclopedia.
Jump to navigationJump to search
Population Bomb
ネズミざん Proliferation
Population Bomb IX.png
Type  Normal
Category  Physical
PP  10 (max. 16)
Power  20
Accuracy  90%
Priority  0
Foe Foe Foe
Self Ally Ally
May affect anyone adjacent to the user
Introduced  Generation IX
Condition  [[{{{category}}} (condition)|{{{category}}}]]
Appeal  0  
Jam  0  
Condition  [[{{{category}}} (condition)|{{{category}}}]]
Appeal  0  
Condition  [[{{{category}}} (condition)|{{{category}}}]]
Appeal  0  
Jamming  0  

Population Bomb (Japanese: ネズミざん Proliferation) is a damage-dealing Normal-type multi-strike move introduced in Generation IX. It is the signature move of Tandemaus and Maushold.


Population Bomb inflicts damage, hitting the target up to ten times per use. Each of Population Bomb's strikes has a separate accuracy check. If any strike fails, the move ends.

If the user is holding Loaded Dice, only one accuracy check is performed, and it will hit between four and ten times (with an even chance of each number of hits). If the user has Skill Link, the move will have only one accuracy check and hit the maximum ten times.

If used by a Pokémon with Sharpness, its power is increased by 50%.

If the target has an Ability that activates upon contact, each strike counts individually, enabling the Ability to activate multiple times. If the target is holding a Rocky Helmet, the user is damaged for each strike. If a Focus Sash activates before the last strike is dealt, the following strike will cause the defending Pokémon to faint. A Focus Band can still activate repeatedly to prevent fainting, but each chance is independent. Sturdy will activate with each hit if the defending Pokémon has a maximum HP of 1.


Assuming no modifications to accuracy or evasion, this move's average effective power is ~117.24, and the chances of it hitting a certain amount of times are as follows:

Number of hits Chance
0 10%
1 9%
2 8.1%
3 7.29%
4 ~6.56%
5 ~5.91%
6 ~5.31%
7 ~4.78%
8 ~4.31%
9 ~3.87%
10 ~34.9%


Games Description
SV The user’s fellows gather in droves to perform a combo attack that hits the target one to ten times in a row.


By leveling up

# Pokémon Types Egg Groups Level
0924 Tandemaus NormalIC Big.png Field Fairy 46
0925 Maushold
All forms
NormalIC Big.png Field Fairy 53
Bold indicates a Pokémon gains STAB from this move.
Italics indicates a Pokémon whose evolution or alternate form receives STAB from this move.
A dash (−) indicates a Pokémon cannot learn the move by the designated method.
An empty cell indicates a Pokémon that is unavailable in that game/generation.


  • Along with Triple Kick and Triple Axel, Population Bomb is one of only three multi-strike moves whose chances to miss for successive hits are independent of the first hit.
  • The Japanese name for the move can be read as both ねずみ算 nezumizan (to multiply like mice; literally "mouse mathematics", a common arithmetic problem) and ねずみ斬 nezumizan (mouse cut), explaining why the move is strengthened by Sharpness.

In other languages

Language Title
Chinese Cantonese 鼠數兒 Syú-souyìh
Mandarin 鼠數兒 / 鼠数儿 Shǔ-shù'er
France Flag.png French Prolifération
Germany Flag.png German Mäuseplage
Italy Flag.png Italian Infestazione
South Korea Flag.png Korean 찍찍베기 Jjikjjikbegi
Spain Flag.png Spanish Proliferación

Project Moves and Abilities logo.png This article is part of Project Moves and Abilities, a Bulbapedia project that aims to write comprehensive articles on two related aspects of the Pokémon games.