For all chapters - When the battle begins send out few Tank Cats/Wall Cats to stall your enemies. Use that time to upgrade your Cat Wallet to max level. When Croco comes with Those Guys start spawning Axe Cats/Brave Cats along with meatshields. Even when Baa Baa and Jackie Peng spawns, keep sending out the same cats. This way you will slowly progress toward the enemies base, but you don't want to get too close. Eventually your money will be maxed out. That's when you can spawn all of your basic cats. Altrough, you might want to focus on spawning Fish Cats/Whale Cats and Bird Cats /Ufo Cats. This way you will be prepared against Pigge and other enemies.
After all of this hard work, you can finally destroy the enemies base!