Pet Mutations
Pet Mutations is a mechanic in Grow A Garden 2 that makes the spawned pets have a small chance of changing appearance.
There are currently 2 Pet Mutations in the game, Big and Huge.
The odds of a spawnable pet having any mutation is currently unknown, but the chances are very low.
These mutations come with their unique boosts, depending on the type of pet:
A normal Bunny adds +5 speed to your avatar, while a Big Bunny adds +10 speed instead.
A normal Frog adds +5 jump height, while a Big Frog adds +10 jump height.
A Frog and a Bunny, both with the Big mutation.