Battle Princess Madelyn is an action-packed game developed by Causal Bit Games for Nintendo Switch. The game follows the journey of the young knight in training, Madelyn, and her ghostly pet dog, Fritzy, who embark on a mission to save her kingdom and family from an evil wizard. The game has been designed in the vein of classic Ghouls N' Ghosts and Wonder Boy 3: The Dragon's Trap, offering old-school gamers an instantly familiar gameplay experience.

The game boasts of amazingly detailed hand-drawn pixel art, brought to life by the magical lighting of the Unity Engine. Battle Princess Madelyn features a mix of fast-paced classic arcade action with the adventure elements of classic console games from the golden age of console gaming. The game includes 10 levels, each of which includes up to 5 stages, including 1 or 2 branching hidden stages. The game also features combo meters for destroying and juggling enemies, 10 types of weapons, and up to 10 unique enemies per level. Additionally, the ghostly dog companion, Fritzy, gains powers as you progress through the game, allowing you to unlock puzzles and otherwise inaccessible areas of stages.