Kitty Cat to Birman[]
Activate 2x coins. Get a Somali Cat. Now, the Shop has opened up. Buy lots of Kittens, and work your way up.
Birman to Bombay Cat[]
This is where it gets complex. We will be exploiting the fact that when a new cat is unlocked in the Shop, it is EXTREMELY cheap. That is GOOD. Very good. Now, we are in a loop. Cats > Coins > Cats. Now, let's get mathematical, to determine the rate of progression. So, let's say we have a Ragdoll. We have a Sneaky Cat unlocked. Our friend, Sneaky, is 5 tiers below Ragdoll. Seeing as Cat Condo is a merge-2 incremental, that means that 2^5 Sneakies are required to unlock Japanese Bobtail in the shop. 2^5 is 32, so the progression is pretty slow, huh? Well, fret not! Gift and Surprise boxes are good, and also, we have 2x coins, which makes it approx. 1/16! **TBC**