Pokédex expansion

• Adds all Johto Pokémon (#152–251), bringing the game to the full 251 Kanto + Johto roster, with matrix + sprite assets for each.
• New Johto starters (Chikorita, Cyndaquil, Totodile) join the starter event; Johto species seeded across common, fishing, uncommon/rare, and rare pools.
• New Johto legendaries as conditional spawns (Raikou, Entei, Suicune, Lugia, Ho-Oh, Celebi) plus Hitmontop. Mew's unlock now keys off the Kanto dex count so Johto additions don't block it.

Breeding & eggs (new mechanic)

• A daycare-style system: two training partners that are egg-group/gender compatible can produce an egg over time (BreedingController).
• Eggs are caught like Pokémon, then hatch by walking — a step-counter sensor counts real-world steps against a per-egg requirement.
• Egg inheritance follows the mother's species (Ditto pairs with anything), reduced to the base evolution stage.

Gender & happiness

• Every Pokémon now has a gender (from species gender ratios) and a happiness stat.
• Happiness-based evolutions added (e.g. Pichu→Pikachu, Golbat→Crobat, Eevee→Espeon/Umbreon), including day/night variants.
• New Soothe Bell Cookie item to raise happiness; Sun Stone added for stone evolutions (Bellossom).

Other features

• Baby Pokémon (Pichu, Cleffa, Tyrogue, etc.) obtainable via breeding.
• Unown with 26 forms — the specific letter is determined by the minute you set the phone down.
• Second training slot (train two Pokémon at once).
• Togepi egg milestone reward at 20 unique species caught.
• "Eggs only" filter and an egg pouch in the caught/Pokédex UI; new trainer tips for the new mechanics.