Population Bomb (move)

Population Bomb ネズミざん Proliferation

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Battles Type  Normal Category  Physical PP  10 (max. 16) Power  20 Accuracy  90% Priority  0 Makes contact Affected by Protect Not affected by Magic Coat Not affected by Snatch Affected by Mirror Move Affected by King's Rock

Target Foe Foe Foe Self Ally Ally May affect anyone adjacent to the user

Availability Introduced  Generation IX Not a TM, TR, HM, or Move Tutor move.

Contests Condition  [[{{{category}}} (condition)|{{{category}}}]] Appeal  0   Jam  0

Super Contests Condition  [[{{{category}}} (condition)|{{{category}}}]] Appeal  0

Contest Spectaculars Condition  [[{{{category}}} (condition)|{{{category}}}]] Appeal  0   Jamming  0

On Smogon's Movedex: Generation IX

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.

Effect

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.

Calculations

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%

Description

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.

Learnset

By leveling up

#	Pokémon		Types	Egg Groups		Level
						IX
						SV
0924		Tandemaus		Field	Fairy	46
0925		Maushold All forms		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.

Trivia

• 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 French Prolifération German Mäuseplage Italian Infestazione Korean 찍찍베기 Jjikjjikbegi Spanish Proliferación

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.