Cosmo's Cosmic Adventure is a video game programmed by Todd Replogle and published by Apogee Software in 1992. It is a two-dimensional side-scrolling platform game produced for the PC platform, and features 16-color EGA graphics at 320×200 screen resolution. Working titles for the game include The Adventures of Zonk and Cosmo: Kid From Space.
The storyline is about a little alien boy named 'Cosmo'. Cosmo's parents are taking him to Disneyland for his birthday. A comet hits their ship, forcing them to land on an unknown planet and repair the ship. Cosmo goes exploring, and when he returns, his parents are missing. Seeing large footprints, Cosmo thinks that his parents have been captured and sets off to rescue them before they are eaten. There are 3 episodes in the game series in which Cosmo must navigate through 10 alien-themed levels.
At the end of the first episode, Cosmo unexpectedly gets swallowed by a large creature. The story continues in the second episode, where Cosmo ends up in the creature's body and has to find a way out. At the end of the second episode, Cosmo finds the city where he thinks his parents might have been taken. In the final episode, Cosmo finds his parents (who were in no danger of being eaten the whole time) and has a great time at Disneyland for his birthday.
The player controls the main character Cosmo, around the levels in order to reach the exit point. Cosmo can walk and jump, and can hang onto most walls with his suction-cup hands. Combining the hanging and jumps allows Cosmo to climb to higher places.
There are some interactive objects in the game, including pushable ceiling buttons, teleporters, and springs that make Cosmo jump higher. There are also hovercrafts (floating pads that allow Cosmo to fly) and hint globes (which cause a message to be displayed if Cosmo runs into one; destroying one with a bomb earns 12,800 points). The player has access to bonus levels after each level if enough stars are collected. Duke Nukem is found on Level 7, Episode 2 encased in a block of ice. The player can bomb the ice to release him, in which case he will give Cosmo a cheeseburger. He refuses to help Cosmo as he is on a mission (to save the galaxy), but tells Cosmo to watch out for his next game: Duke Nukem II. Duke's name is displayed as Duke Nukum.
Cosmo has a health meter starting with three units. Each time an enemy or hazard damages Cosmo, he loses one unit of health. If he takes further damage after losing all health units, or falls off a chasm, the player restarts the level. Cosmo has unlimited lives. There are power-up modules that restore one health unit each. There are also two hidden cheeseburgers in each episode. Picking one up earns Cosmo an additional empty health unit; thus Cosmo's health meter can have a maximum of five units. There are several enemies found in the levels. They hurt Cosmo by touching him or firing projectiles at him. Cosmo can kill many of them by jumping on them once or multiple times. Bombs can also be collected and used to destroy enemies. Cosmo can carry at most 9 bombs at a time. After Cosmo drops a bomb, it takes a few seconds to explode, and it can hurt Cosmo if he is too close. Bombs can also be used to destroy other objects and hazards in the game. There are also shield cubes, which once collected provide a temporary invincibility shield for Cosmo.
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