Special Cats

Special Cats are unlocked throughout each playthrough by completing certain missions, or after meeting specific requirements. Most Special Cats need to be purchased with Cat Food, which is obtained as a Daily Bonus and can be purchased with actual currency. The purchasable cats and a few others can all have a True Form when their respective awakened stages are beaten.

The list of Special Cats includes:

Purchasable Cats

God Cat
Ninja Cat ^{strong against red} → Ninja Frog Cat → Flying Ninja Cat (Complete Philippines Ch.1)
Sumo Cat ^{resist knockback} → Madame Sumo → Riceball Cat (Complete Singapore Ch.1)
Samurai Cat ^{slow all (except metal)} → Knight Cat → Pastry Cat (Complete Nepal Ch.1)
Zombie Cat ^{strong against red/zombie + zombie killer} → Devil Cat → Skelecat (Complete Madagascar Ch.1)
Cats in a Box ^{weaken black} → Cat Gang → Heavy Assault C.A.T. (Complete Egypt Ch.1)
Boogie Cat ^{knockback all (except metal)} → Samba Cat → Gato Amigo (Complete Italy Ch.1)
Bondage Cat ^{strong against red + survive + warp blocker} → Bondage CatNEO → Ultimate Bondage Cat (Complete Denmark Ch.1)
Dom Cat ^{strong against red/black} → Executioner → Dark Lazer (Complete Greenland Ch.1)
Kung Fu Cat ^{resist weaken} → Drunken Master Cat → Dancer Cat (Complete Jamaica Ch.1)
Actress Cat → Mother Cat → Beefcake Cat (Complete Japan Ch.2)
Skirt Cat ^{barrier breaker} → Tights Cat → Loincloth Cat (Complete Greece Ch.2)
Panties Cat → Leaf Cat → Lollycat (Complete Bermuda Ch.2)
Mr. ^{zombie killer}→ Super Mr. → Hyper Mr. (Complete India Ch.2)

Legend Cats

Legends differ from other Special Cats in that they cannot be upgraded past level 30 until the player has completed An Ancient Curse, after which they can be hypermaxed to level 40 using Catseyes.

Valkyrie Cat ^{freeze all (except metal)} → True Valkyrie Cat → Holy Valkyrie Cat (Complete Moon Ch.2; Complete Moon Ch.5 for True Form)
Bahamut Cat → Crazed Bahamut Cat → Awakened Bahamut Cat (Complete Moon Ch.3; Complete Moon Ch.6 for True Form)
Cat God the Great ^{knockback all (except metal)} → Cat God the Awesome (Complete The Big Bang Ch.8)
Ururun Wolf ^{knockback all (except metal) + resist curse} → Ururun Cat → Awakened Ururun (Complete The Great Escaper, chance)
Li'l Nyandam ^{slow all (even metal) + resist curse} → Dark Emperor Catdam → Schoolbus Nyandam (Complete Saint Red Fox, chance)
Red Riding Mina ^{long distance+ weaken relic + resist curse} → Crimson Mina → Awakened Mina (Complete Learned to Love, chance)
Miyamoku Musashi ^{resist waves + zombie killer + freeze relic + resist curse} → Legendary Musashi → Awakened Musashi (Complete Multiversal Studios, chance)
Mecha-Bun ^{strong against relic + resist curse} → Mecha-Bun Mk II (Complete Eldritch Forces) → Ultimate Mecha-Bun (Complete An Ancient Curse)
Hermit Cat ^{wave attack} → Grandmaster Cat (Complete Floor 30 of the Heavenly Tower)
Masked Yulala ^{long distance} → Mystic Yulala (Complete Floor 40 of the Heavenly Tower)

Bonus Cats

Tricycle Cat → Biker Cat → Unicycle Cat (Must log in for at least 30 days total)
Flower Cat ^{freeze black} → Cooldown Cat → Bombercat (Flick the backdrop door in the Cat Base screen continously)
Moneko ^critical → Miss MONEKO (Complete Moon Ch.1)
Bean Cats ^{knockback red} → Brah Cats (Complete Greece Ch.1)

Limited Event Cats

For the full article, see here.

Meowla Meowla ^{resistant to red} → Catorpedo (Die while in cat mode in 'Survive! Mola Mola!' during event)
Mr.Ninja ^{massive damage to aliens} → Mint (Complete the first gate in 'Mr.Ninja!! Fever' game during event)
Tanky → Tanky 'n' cat
White Cat → Gross White Cat
Fortressy → Castley
Catburger → Cat Royale → Value Meal Cat (English only, complete Minced-Meet Up stage)
CPAC ^{strong against red} → PPAP (Received after 100,000 shares of the Pikotaro Mobile Debut event)
Happy 100 → Heartful Happy 100
Farmer Cat ^{extra money} → Harvest Cat (Obtained as a stamp reward from 22/12/17 - 31/12/17)
Sakuri Hikami & Cat ^{knockback red} → Sakuri Hikami & Cat CC
Imoto ^critical → Imoto CC
Crazed Moneko ^critical → Corrupted Moneko (Complete the final stage of Moneko World Tour, In MOON)
Nekokkuma ^{knockback black} → Killer Nekokkuma

Event Gacha

Li'l Cat → Li'l Macho Cat → Li'l Mohawk Cat (Complete Tiny Meows for True Form)
Li'l Tank Cat ^{resist freeze} → Li'l Wall Cat → Li'l Eraser Cat (Complete Tiny Will for True Form)
Li'l Axe Cat ^{strong against red/angel} → Li'l Brave Cat → Li'l Dark Cat (Complete Tiny Chopper for True Form)
Li'l Gross Cat ^{knockback aliens + barrier breaker} → Li'l Sexy Legs Cat → Li'l Macho Legs Cat (Complete Tiny Creeper for True Form)
Li'l Cow Cat ^{resist waves} → Li'l Giraffe Cat → Li'l Lion Cat (Complete Tiny Horns for True Form)
Li'l Bird Cat ^{strong against zombie + zombie killer} → Li'l UFO Cat → Li'l Flying Cat (Complete Tiny Wings for true Form)
Li'l Fish Cat ^{strong against red + critical} → Li'l Whale Cat → Li'l Island Cat (Complete Tiny Fins for True Form)
Li'l Lizard Cat → Li'l Dragon Cat →Li'l King Dragon Cat (Complete Tiny Tail for True Form)
Li'l Titan Cat ^{knockback all (except metal)} → Li'l Mythical Titan → Li'l Jamiera Cat (Complete Tiny Fists for True Form)

PC Exclusive

Bun Bun Monger Prototype → Bun Bun Monger Iron → Bun Bun Monger Devil^survive (Complete Fukuoka stage)
Peach → Santa Peach & Cat (Obtained as a stamp reward from 19/12/17 - 19/12/17(?)
New Year Peach^{extra money} → New Year Peach & Cat (Obtained as a stamp reward from 29/12/17 - 09/01/18(?)))