Filibuster Invasion (Cats of the Cosmos)

Filibuster Invasion (フィリバスター襲来ステージ, Filibuster Attack Stage in the Japanese version) is a special stage in Cats of the Cosmos Chapter 3. It temporarily replaces a random stage after completing the chapter, much like a Zombie Outbreak. Upon completion, Filibuster Cat X will be unlocked.

Restrictions
There are no restrictions for this stage.

Battleground
Filibuster Obstructa and Kid Tappa spawn at the start of the battle.

Shadow Boxer K spawns when Kid Tappa is killed.

Bore spawns when Shadow Boxer K is killed.

Bun Bun Symbiote spawns when Bore is killed.

General GreGory spawns when the enemy base is at or below 50% HP, and another spawns at 25% HP.

Trivia

 * Prior to version 8.3.2, Filibuster Obstructa stood in front of Kid Tappa, thus allowing players to cheese this stage by enabling Sniper The Cat and deploying no units until Filibuster Obstructa was killed.

Reference

 * http://battlecats-db.com/stage/s03008.html