Complex sentence: The scenario is a maze and the player controls Popeye who has a time limit to collect some hearts, find Olive Oyl and save Swee'Pea which only appears somewhere to be saved after the hearts were collected and Olive found.
Split into simpler sentences: The scenario is a maze and the player controls Popeye who has a time limit to collect some hearts, find Olive Oyl and save Swee'Pea. Swee'Pea will only appear somewhere to be saved after the hearts were collected and Olive found.