Generation 1

Bulbasaur - Birch and Forest in the morning

Charmander - Mountainous and Eroded Badlands during daytime

Squirtle - Beach at night time

Generation 2

Chikorita - Flowery and Plains during daytime

Cyndaquil - Mesas during day and Ultra Crater (Pixelmon Biome) at night

Totodile - Lakes and Rivers at night

Generation 3

Treecko - Jungles during Night and Day

Torchic - Savanna in the afternoon

Mudkip - Swamp, Lush Cave, and Ultra Plant (PB) at night

Generation 4

Turtwig - Forests during the day

Chimchar - Mountainous Forests and Snow Taiga Mountains & Hills during the day

Piplup - Deep Frozen Ocean, Frozen Ocean, Frozen River, Snowy Beach at night

Generation 5

Snivy - Forest and Roofed Forests during the day

Tepig - Savannas at night

Oshawott - Stone Shore and Ultra Deep Sea (PB) in the afternoon

Generation 6

Chespin - Birches and Taigas during the day

Fennekin - Arid and Ultra Desert (PB) during the day

Froakie - Swamps and Ultra Jungle (PB) in the morning

Generation 7

Rowlet - Redwoods, Taigas and Ultra Forest (PM) at night

Litten - Jungle Hills, Modified Jungle, Bamboo Jungle Hills, and Ultra Jungle (PB) during the day

Popplio - Beach in the morning

Generation 8

Grookey - Jungles at night

Scorbunny - Plains in the morning

Sobble - Lakes and Rivers in the afternoon

Generation 9

Sprigatito - Birches during the day

Fuecoco - Mesas at night

Quaxly - Lakes and Rivers in the morning