Commander Keen in "Goodbye, Galaxy!": Episode IV - Secret of the Oracle is a classic platformer released in 1991, continuing the adventures of the young hero, Billy Blaze. Players navigate vibrant, alien worlds filled with challenging puzzles, enemies, and hidden secrets. With its charming graphics and engaging gameplay, Keen must uncover the mysteries of the Oracle to save the galaxy. Featuring smooth controls and a whimsical storyline, this episode captivates fans of retro gaming, offering a delightful blend of action and exploration.