Commander Keen 2: The Earth Explodes is the second game in the first trilogy of Commander Keen platform games, called Commander Keen: Invasion of the Vorticons. In this episode a Vorticon Mothership is poised above Earth, preparing to destroy the planet with their deadly Tantalus Rays! Commander Keen's mission is to stop these evil Vorticons from blowing up the Earth. In order to do this you need to find and destroy each X-14 Tantalus Ray, powered by cells from the big purple Space Amoeba.
The game begins with a top-down map of the mothership. This is the level select screen, where you can walk around and choose the next level you want to enter. On each level, you have to find the exit; if this is one of the levels with a Tantalus Ray, you've got to destroy the Ray before exiting. Once you reach the exit, you're back on the map of the mothership.
The levels are typically full of enemy creatures and hazards. If Keen gets shot or touched, or falls into a pit or hazard, he dies, and you're booted out of the level back to the overhead map and lose one life.
Thankfully, Keen can defeat some of the enemies with his raygun. He also has a pogo stick which allows him to jump very high. Other items to find include keycards that open locked doors and bonus items which give score (Keen gets an extra life if he collects enough score).
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This version of Commander Keen 2: The Earth Explodes was designed for personal computers with operating system MS-DOS (Microsoft Disk Operating System),
which was operating system developed by Microsoft in 1981. It was the most widely-used operating system in the first half of the 1990s. MS-DOS was supplied
with most of the IBM computers that purchased a license from Microsoft. After 1995, it was pushed out by a graphically more advanced system - Windows and
its development was ceased in 2000. At the
time of its greatest fame, several thousand games designed specifically for computers with this system were created. Today, its development is no longer continue
and for emulation the free DOSBox emulator is most often used. More information about MS-DOS operating system can be found
Available online emulators:
5 different online emulators are available for Commander Keen 2: The Earth Explodes. These emulators differ not only in the technology they use to emulate old games, but also in support of various game controllers, multiplayer mode, mobile phone touchscreen, emulation speed, absence or presence of embedded ads and in many other parameters. For
maximum gaming enjoyment, it's important to choose the right emulator, because on each PC and in different Internet browsers, the individual emulators behave differently. The basic
features of each emulator available for this game Commander Keen 2: The Earth Explodes are summarized in the following table:
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