First video game in a series: you're like that person in a movie and you're gathering the four crystals and gonna fight the Dark Beast!
Twelfth video game in a series: each of the four crystals represents one of the personality traits of God, who the Dark Beast killed in the prequel game, and the destiny of the Dark Beast is to destroy the universe via heat death unless you fulfill your destiny to kill them by causing the universe to explode via big crunch instead, causing a second big bang