
Impossible Animals Wiki
Reference pages for the three things you look up mid-game: what each animal pairs with, what the next facility upgrade costs, and whether a Robux item is worth buying.
Guides by player task
Fusion materials
Look up the animal you just rescued.
Pen and treadmill upgrades
Both are sold for in-game cash, not Robux.
Robux store
Check the in-game cash route first; three upgrades are free of Robux.