Starting at offset 0x427BD (Gold/Silver) or 0x425B1 (Crystal) is an array of 251 two‐byte pointers. Following a pointer will lead you to the evolutions and level‐up moves of each Pokémon. The pointers are in Pokédex order. Once you find the data, you’ll see that the format is as follows: + <0x00> + <0x00> An evolution is defined like this: The trigger depends on the evolution type. * Evolution Type 0x01: Trigger is the level at which the Pokémon evolves. * Evolution Type 0x02: Trigger is the item number of the evolution stone. * Evolution Type 0x03: Trigger is a held item used while trading, or 0xFF for non‐item trade. * Evolution Type 0x04: The Pokémon evolves when happy. Trigger is: * 0x01: Any time of day. * 0x02: Morning or Day. * 0x03: Night. * Evolution Type 0x05: The Pokémon evolves at a certain level, but only if it has certain stats. Trigger is two bytes, the first being the level and the second being: * 0x01: Attack > Defense * 0x02: Attack < Defense * 0x03: Attack = Defense Attacks are easier. They are just: # Examples ## Offset 0x429B3: Bulbasaur 01 10 02: evolves to Pokémon #2 (Ivysaur) at level 16 00: no more evolutions 01 21: Tackle at level 1 04 2D: Growl at level 4 07 49: Leech Seed at level 7 0A 16: Vine Whip at level 10 0F 4D: Poisonpowder at level 15 0F 4F: Sleep Powder at level 15 14 4B: Razor Leaf at level 20 19 E6: Sweet Scent at level 25 20 4A: Growth at level 32 27 EB: Synthesis at level 39 2E 4C: Solar Beam at level 46 00: no more level‐up moves ## Offset 0x429CE: Ivysaur 01 20 03: evolves to Pokémon #3 (Venusaur) at level 32 00: no more evolutions 01 21: Tackle at level 1 01 2D: Growl at level 1 01 49: Leech Seed at level 1 04 2D: Growl at level 4 07 49: Leech Seed at level 7 0A 16: Vine Whip at level 10 0F 4D: Poisonpowder at level 15 0F 4F: Sleep Powder at level 15 16 4B: Razor Leaf at level 22 1D E6: Sweet Scent at level 29 26 4A: Growth at level 38 2F EB: Synthesis at level 47 38 4C: Solar Beam at level 56 00: no more level‐up moves ## Offset 0x429ED: Venusaur 00: no more evolutions 01 21: Tackle at level 1 01 2D: Growl at level 1 01 49: Leech Seed at level 1 01 16: Vine Whip at level 1 04 2D: Growl at level 4 07 49: Leech Seed at level 7 0A 16: Vine Whip at level 10 0F 4D: Poisonpowder at level 15 0F 4F: Sleep Powder at level 15 16 4B: Razor Leaf at level 22 1D E6: Sweet Scent at level 29 29 4A: Growth at level 41 35 EB: Synthesis at level 53 41 4C: Solar Beam at level 65 00: no more level‐up moves ## Offset 0x434C0: Eevee 02 17 87: Evolves to Jolteon via Thunderstone 02 18 86: Evolves to Vaporeon via Water Stone 02 16 88: Evolves to Flareon via Fire Stone 04 02 C4: Evolves to Espeon when happy in Morning or Day 04 03 C5: Evolves to Umbreon when happy at Night 00: no more evolutions 01 21: Tackle at level 1 01 27: Tail Whip at level 1 08 1C: Sand Attack at level 8 10 2D: Growl at level 16 17 62: Quick Attack at level 17 1E 2C: Bite at level 30 24 74: Focus Energy at level 36 2A 24: Take Down at level 42 00: no more level‐up moves ## Offset 0x43CF7: Tyrogue 05 14 02 6B: Evolves to Hitmonchan at level 20 if Defense > Attack 05 14 01 6A: Evolves to Hitmonlee at level 20 if Defense < Attack 05 14 03 ED: Evolves to Hitmontop at level 20 if Defense = Attack 00: no more evolutions 01 21: Tackle at level 1 00: no more level‐up moves