Five Nights in The Castle 4: Koopa Madness

Five Nights in The Castle 4: Koopa Madness is a game that takes place in between FNiTC 1 and 3. You play as the Koopa Kids from Mario Party, rather than Mario or Luigi.

Story
After FNiTC 1, the Koopa Kids (Not to be confused with Bowser Junior or the Koopalings) attempted to use Gold Mario as a minion against Mario. To their dismay, Gold Mario was being melted down. They recovered him and took him to Bowser's Castle, but they did not know of his lack of compassion. Melted Gold Mario proceeded to go on a rampage throughout the Castle, and the Koopa Kids hid in the Castle's "Control Room," The Koopa Kids proceeded to go to three different devices which control the traps in the Castle. No Mario Clone would kill Bowser's Lieutenants today...

Antagonists
Unlike most other games in the series, FNiTC 4 only has one antagonist and no easter egg antagonists.

Melted Gold Mario
MGM reprises his role as an antagonist from FNiTC 3, and is the only one in the game. He hunts you down if you do not use the traps on him accordingly. All traps affect him.

Traps
Each trap in the game is controlled by a different Koopa.

Blue Koopa
Blue Koopa controls the Thwomps. If you drop a Thwomp on MGM he will be stopped for enough time to use Green Koopa on him.

Green Koopa
Green Koopa controls the Boos. If you send the Boos to MGM he will be dragged away, but only if he is stopped by Blue or Red Koopa.

Red Koopa
Red Koopa controls the Fire Sticks. If you spin a fire stick and hit MGM he will be stopped for enough time to use Green Koopa on him.