- Infinite Doges spawn after 0 seconds0f, delay 3~20 seconds90f~600f.
- Infinite Snaches spawn after 0 seconds0f, delay 3~20 seconds90f~600f.
- Infinite Those Guys spawn after 40 seconds1,200f, delay 3~20 seconds90f~600f.
- When the base reaches 50% HP:
Doge, Snache, and Those Guys will be spawned frequently at the start of the battle. Spawn a few Wall Cats to stall them and to fill up your wallet to the max. Once your money is maxed out, start sending out Dragon Cats. Keep spamming Dragon Cats only until the enemy base reaches 700,000 HP, where you can start spamming Sexy Legs Cats for extra support. Once the enemy base's health reaches about 500,000 HP, Kory will appear. Keep spamming Dragon Cats, but not Sexy Legs Cats. Along with Dragon Cat spawn in Valkyrie and Mythical Titan Cat for support. Once you have killed Kory, spawn in everything at once so the base can be destroyed faster.
If you do not defeat Kory fast enough and he reaches your base, do not worry; as a last resort, once Kory approaches your base/lose too many Dragon Cats, save up money. Once he starts hitting your base, spawn in Bahamut Cat to finish him off. It should work if you have dealt enough damage to Kory already.
If you have Ring Girl Cat, you should have no problem at all; two of them stacked and at level 30 (27 should be enough) can kill Kory by themselves by simply attacking first, knocking him back, and attacking again when Kory is back, repeating the process; due to their long attack rate and the pause after attacking, Ring Girl Cats will never attack too early because of peons nor too late and always attack again when Kory is back, but before he does anything, making this unit perfect for dealing with Kory. However, this strategy requires a high leveled Ring Girl Cat.
For 2 and 3 star, you can do much the same and possibly advance the strategy with Wave Immune cats or Wave Shield cats like Octopus Cat or Eva Unit-00, the latter of which nullifies the difficulty of the stage entirely.
Strategy 1 (cheese)
Lineup: You only need Li'l Wall Cat but you should probably take some high damage cats unless you wanna wait a really long time. Done with all Empire of Cats treasures and level 20 cats. Do not use any Long Distance Cats, Shockwave Cats or extremely fast cats.
Spam Li'l Wall Cats as soon as the level starts, do not slow down, your Li'l Walls will slowly push towards the enemy base. Use your cat cannon as soon as it charges for the first time, and DO NOT use it again. Eventually, your Li'l Walls will make it to the enemy base. Wait for the peons to stack up, your Li'l Walls will no longer be hitting them due to their short range, but they will be hitting the base. If you hit the cat limit, don't worry just keep spawning Li'l Walls, the cat limit will not pose a risk here. When it's clear there are no more enemies spawning due to the enemy limit, you've already won. Keep up your spamming and slowly but surely their base will be destroyed. However this takes a very long time, so just spawn in any strong cats you brought to destroy the base quicker.
Strategy 2 (4-star)
Lineup: Some good cats for combos, Awakened Bahamut Cat (30), Li’l Eraser (40), Ramen Cat (45), Maximum the Fighter (45), Riceball Cat (30), Miyamoku Musashi (28).
Battle: Stall with Li’l Eraser Cat until you get max money. Then spawn a couple of Ramen Cats and maybe Maximum the Fighter. At this time, also spawn Miyamoku Musashi. Once Kory appears you want to keep spawning Maximum and Ramen. If Miyamoku Musashi dies then then keep spamming regardless. If Musashi dies and Kory is coming closer, spawn A. Bahamut. If Kory is pushing too much spawn Riceball Cat for an emergency. Once Kory dies you’ve won and have officially completed Volkanos Volkano!