Just like the previous project for ADV which ended up helping PO implement the third generation, we will be collecting up as many differences between GSC and the third generation as possible to make it easier to implement on simulators.
Data changes:
Global mechanic changes:
Specific changes (e.g. specific items functioning differently):
If you want to support the adoption of older generations by active simulators, this is the best way you can help out! Post any differences you can think of here, and please link to sources wherever possible.
Data changes:
- Remove of all Pokemon, Moves, and Items not obtainable in the first two generations and evolutionary links with them.
- Remove Unown ! and ?
- Remove Abilities and Natures entirely.
- Add all Items removed from later games (list needed, I'll probably get this).
- Modify learnsets (including NYPC moves, I'll go through my sources again and get a list... but they were really badly documented so it'll be hard to be 100% accurate.).
Global mechanic changes:
- Modify EV system (bulbapedia page).
- Modify Hidden Power formula to this.
- Hail weather condition does not exist.
- Double battles do not exist.
- Modify IV system (bulbapedia page):
- IVs range from 0 to 15.
- "Special" IV modifies both SpD and SpA stats.
- HP IV determined by the other four. Take the last binary digit of Attack, Defense, Speed, and Special in order to generate the 4 digit binary number for the HP IV.
- Gender determined by Attack IV. If the Attack IV is below a certain number specific to the species it is female, otherwise male.
87.5% male gender ratio
Attack IV needs to be 0 or 1 to be female all others result in a male
75% female ratio
Attack IV needs to be below 12 to be female
75% Male ratio
Attack IV must be below 4 to be female
50-50 ratio
Attack IV must be below 8 to be female
Male - female
87.5 - 12.5
Bulbasaur
Ivysaur
Venusaur
Charmander
Charmeleon
Charizard
Squirtle
Wartortle
Blastoise
Totodile
Croconaw
Feraligatr
Chikorita
Bayleef
Meganium
Cyndaquil
Quilava
Typhlosion
Eevee
Vaporeon
Jolteon
Flareon
Fossils
Snorlax
Togepi
Togetic
25 - 75
Cleffa
Clefairy
Clefable
Vulpix
Ninetales
Igglybuff
Jigglypuff
Wigglytuff
Snubbull
Granbull
Corsola
50 - 50
all others
75 - 25
Growlithe
Arcanine
Abra
Kadabra
Alakazam
Machop
Machoke
Machamp
Elekid
Magby
Electabuzz
Magmar
100 - 0
Hitmontop
Hitmonchan
Hitmonlee
Tyrogue
Tauros
Nidoran-M
Nidorino
Nidoking
0 - 100
Miltank
Smoochum
Jynx
Kangaskhan
Chansey
Blissey
Genderless
Magnemite
Magneton
Staryu
Starmie
Voltorb
Electrode
Ditto
Porygon
Porygon2
Unown
Articuno
Moltres
Zapdos
Mewtwo
Mew
Raikou
Suicune
Entei
Celebi
Lugia
Ho-Oh - Shinyness based on IVs (if Speed, Defense, and Special IVs are 10, and the Attack IV is 2, 3, 6, 7, 10, 11, 14 or 15 the Pokemon will be Shiny).
- Stats are capped at 999 with the exception below.
- If Marowak's has Thick Club and it's Attack is boosted and the stat is boosted to over 1023 (e.g. like 255-256), it's Attack will roll back over to zero. Light Ball Pikachu with boosted SpA needs testing to see if if has the same behavior. Thief after rollover needs testing.
- Bad poison changes (to normal poison) when a Pokemon is not active.
Specific changes (e.g. specific items functioning differently):
- Spikes can only stack to one layer, doing 12.5% to non-flying types.
- Sleep Talk will not fail if it selects Rest, and will cause the Pokemon to use Rest (though Rest will fail as usual if the Pokemon is at full HP).
- Counter, Mirror Coat, Roar, Vital Throw, and Whirlwind have -1 Priority.
- Roar and Whirlwind will fail unless they move last.
- Leech Seed doesn't drain HP the turn it's used.
- For Ghost Curse: "defeating the opponent will prevent the Pokémon it is used on taking damage from Curse on that turn."
- Outrage type moves do not display a message indicating that the user has become confused when they end.
- In Gold/Silver Belly Drum causes the user to faint if it is at 50% or less. In Crystal and Stadium 2, it will display a failure message but still raise the Pokemon's attack by two stages.
- In Gold/Silver when using Present the Level, Attack, and Defense variables in the damage formula are replaced by the index number of the defending Pokémon's type, 10, and the index number of the attacking Pokémon's type (secondary type is used for dual type Pokemon). Present will also only inflict a quarter of the normal damage against Rock-type and Steel-type Pokémon. In Crystal and Stadium 2 the normal mechanics are used. Details.
- Encore lasts 2-5 turns in GSC not the 4-8 in RSE.
- Spite reduces the foe's PP by 1-5 rather than 2-5.
- Powder Snow has a 9.8% chance of freezing the target rather than 10%.
If you want to support the adoption of older generations by active simulators, this is the best way you can help out! Post any differences you can think of here, and please link to sources wherever possible.
