Deltarune! The mod features puzzles, several attacks, a few ways of ending the fight for different dialogue and an easter egg or two to find. The mod features puzzles, several attacks, a few ways of ending the fight for different dialogue and an easter egg or two to find. It's a fight with Rouxls Kaard, the peculiar puzzlemaker from Toby Fox's hit sequel...spiritual sequel? It's a fight with Rouxls Kaard, the peculiar puzzlemaker from Toby Fox's hit sequel...spiritual sequel? Deltarune!