The Pig Train is the second boss from Rocket Knight Adventures.
The Pig Train appears as a railed tank with a cannon on the front and mechanical arms. The player has to fight it while riding the Minecart, limiting the player's maneuverability.
The boss will first come from behind, moving forward and back slowly and shooting energy balls from it's cannon at regular intervals. Once the cannon is destroyed the boss will leave and reappear in a track above the player. During this phase it will alternate between moving it's arms around and stretching them after the player. After destroying the arms the boss will leave again and appear on the front, shooting bouncing energy balls.