Egg cycle

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An **Egg cycle** (Japanese: **タマゴのサイクル** *Egg cycle*) is an internal value used for tracking how long until a Pokémon Egg hatches in the core series Pokémon games.

An Egg's Egg cycle counter is initially set to a specific value that depends on the Pokémon species about to hatch. When an Egg is in the party, taking a particular number of steps decreases its remaining number of Egg cycles by 1. When the player takes a number of steps equal to an Egg cycle, their Egg's remaining Egg cycles normally decrease by 1. Once an Egg has no Egg cycles remaining, it hatches. The specifics of how this is implemented differs between generations.

## Steps per cycle

The number of steps per Egg cycle differs between generations.

* In Generations II and III, Egg cycles are 256 steps long.
* In Generation IV, Egg cycles are 255 steps long.
* From Generation V to VI, Egg cycles are 257 steps long.
* In Generation VII, Egg cycles are 256 steps long.
* In Generation AN-I through AN-III, Egg cycles are 256 steps long.

## Decreasing Egg cycles

### Generation V onward

Every time an Egg cycle is completed, the Egg cycle count for all Eggs in the player's party is decreased by 1; if a Pokémon with Flame Body, Magma Armor or Steam Engine is in the party, it is instead decreased by 2 (but not to less than 0).

When an Egg's Egg cycle count reaches 0, it hatches. If multiple Eggs are ready to hatch after an Egg cycle ends, the first Egg in the party will hatch immediately, while the remaining Eggs will hatch—in party order and one at a time—each time the player takes another step.

Using a Hatching Power (from Pass Powers or O-Powers) will shorten the length of an Egg cycle depending on the strength of the Power used.

* Weak: 4/5 (205 steps)
* Medium: 2/3 (171 steps)
* Strong: 1/2 (129 steps)

The number of steps walked in the current Egg cycle is also modified by the appropriate multiplier above. When the Hatching Power wears off, the current number of steps walked in the current Egg cycle is divided by the same multiplier.

In Pokémon Omega Ruby and Alpha Sapphire, using a Secret Pal's "Take care of an Egg" skill decrease an Egg's current Egg cycle count by half of its base Egg cycle count, rounded up.

In Pokémon Sun, Moon, Ultra Sun and Ultra Moon, if the player leaves an Egg at Poké Pelago's Isle Avue, its remaining Egg cycles are decreased over time.

### Generations III and IV

Every time an Egg cycle is completed, the game goes through the Eggs in the player's party in order and performs the following:

* If the Egg's Egg cycle count is 0, the Egg hatches and no other Eggs are processed.
* Otherwise, subtract 1 from the Egg's cycle count.
	+ In

	Egg cycle

	 or Generation IV games, if a Pokémon with Flame Body or Magma Armor is in the party, subtract 2 instead of 1 (but to no less than 0).

As a consequence of this logic, in order to hatch a given Egg, the player must walk one more Egg cycle than the Egg's base Egg cycle value. For example, a new Magikarp Egg has an Egg cycle value of 5, but the player must walk 6 Egg cycles in order to hatch it. Likewise, if a Pokémon with Flame Body or Magma Armor is in the party, instead of an Egg taking `base_Egg_cycles / 2` (rounded up) Egg cycles to hatch, `base_Egg_cycles / 2 + 1` (rounded up) Egg cycles must be walked.

When an Egg is received from the Day-Care Man, the counter for the current number of steps taken in the current Egg cycle is set to 1 in Generation III or to 0 in Generation IV.

### Generation II

Every time an Egg cycle is completed, the game goes through the Eggs in the player's party in order and performs the following:

* Subtract 1 from the Egg's cycle count. If its Egg cycle count is now 0, the Egg hatches and no other Eggs are processed.

## Quotes

The quote shown from the table below depends solely on the Egg cycle value in the Egg's Pokémon data structure. That is, since, in Generations III and IV, the number of Egg cycles remaining for the player to walk before an Egg hatches is one greater than the value in the Egg's data structure, the maximum number of Egg cycles the player must walk is not the maximum shown in the leftmost cell, but one greater than that value. As an example, in

## Egg cycle

, a new Magikarp Egg has a base 5 Egg cycles and will show the quote *"Sounds can be heard coming from inside! It will hatch soon!"* on its summary screen, but the player will have to walk 6 Egg cycles before the Egg will hatch.

 6-10
 11-40
 41 or more

At Poké Pelago's Isle Avue, if the player has an Egg in the hot springs and taps it, Mohn will have a unique set of quotes about the Egg, but they will still correspond to the same intervals.

 1-5
 6-10
 11-40
 41 or more

## Trivia

* In the Pokémon data structure, the number of Egg cycles required to hatch an Egg is stored in the same field that stores the friendship of Pokémon that are not in Eggs.

## See also

* Pokémon breeding
* Pokémon Egg
* List of Pokémon by base Egg cycles