The document contains ideas for various game concepts, including side-scrolling, platformer, combat, and multiplayer games. It discusses ideas like players hunting each other in a hide and seek style game or battling animated characters from TV and movies. The document also summarizes research on similar games like Cuphead, Shovel Knight, Megaman, and The Binding of Isaac to inform design decisions around art style, boss battles, difficulty, and randomization. Finally, it outlines plans to use freely available audio assets for sound effects and music to suit an action-oriented game.