Gilbert aimed to avoid such errors in The Secret of Monkey Island.[23] The team decided to make it impossible for the player character to die, with one notable exception, which focused gameplay primarily on world exploration.[12] The Sierra game-over screen was parodied, when Guybrush falls off a cliff only to be bounced back up by a "rubber tree". Guybrush can also be killed by drowning, though it is an Easter Egg unlikely to be found without conscientious effort.