Nebulus is a video game created by John M. Phillips and published by Hewson Consultants in the late 1980s for various home computer systems. International releases and ports were known by various other names, including Castelian, Kyorochan Land, Subline and Tower Toppler. The game's original 8-bit release came to some critical acclaim, in particular the Commodore 64 release, which garnered a Gold Medal award from UK magazine Zzap!64.
Nebulus was followed by a lesser-known sequel, Nebulus 2, on the Amiga and Atari ST in the 1990s.
Nebulus is a platform game with some distinctive unique features. The player character, a small green creature called Pogo, is on a mission to destroy eight towers that have been built in the sea, by planting bombs at the towers' peaks. Pogo's progress is hindered by enemies and obstacles, which he has to avoid in order to reach the top of the tower.
The actual game play happens at each tower in turn. Pogo starts from the bottom and has to find his way up to the top. The towers are cylinder-shaped and have ledges on their outside, either horizontal, forming stairs or connected by elevators. Because of the cylindrical shape, the towers have no 'left' or 'right' edges, instead allowing Pogo to walk all around the tower.
A graphical innovation, and perhaps the most notable feature of the game, is that when Pogo walks left or right, he always stays in the centre of the visible screen. Instead of the Pogo sprite moving, the tower behind him turns clockwise or counterclockwise with a convincing sense of depth. This was featured favourably in reviews of the game.
Along his way to the top of the tower, Pogo encounters many different enemies, mostly shaped like basic geometric shapes. Pogo can shoot some of the enemies, while some are impervious to shooting. Contact with an enemy knocks Pogo down to the ledge below. If there is no ledge below, Pogo falls into the sea and drowns.
Once he has reached the top of the tower, Pogo needs to enter a door to trigger the tower's destruction mechanism. After that, the tower crumbles to the sea. Pogo then boards his submarine and enters a bonus stage (in some platforms, but not for example in the ZX Spectrum version), where he can shoot various kinds of fish to score bonus points.
This version of Castelian (Tower Toppler) was designed for the Nintendo Entertainment System (NES), which was an eight-bit video game console manufactured
by Nintendo in the years 1983 - 2003. In that time, it was the best-selling video game console for which more than 700 licensed games and a number of non-licensed
games were created. Worldwide, approximately 62 million units of this console were sold at approximately price $ 100 per unit. More information about the
NES console can be found here.
Recommended Game Controllers:
You can control this game easily by using the keyboard of your PC (see the table next to the game). However, for maximum gaming enjoyment, we strongly recommend using a USB gamepad that you simply plug into the USB port of your computer. If you do not have a gamepad, you can buy one of these NES controllers:
Available online emulators:
5 different online emulators are available for Castelian (Tower Toppler). 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 Castelian (Tower Toppler) are summarized in the following table:
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