The document describes a side-scrolling video game where the player controls a character trying to find keys and clues to operate a time machine and return home. The game consists of one large level divided into separate rooms, each requiring the player to complete a puzzle or challenge to progress. Examples of early puzzles include finding a key to unlock a door or inserting keys and keycards in the correct order to start the time machine. At the end, the character discovers the time machine sends them back to the beginning, trapping them in a loop.