Game controls in browserShow Controller & System
Click on the play ZX Spectrum game now button first to load the game,
with the stop / start button you can pause the emulation.
The game is controlled using the keyboard or joystick, just like on an old computer.
Nebulus (Tower Toppler)
Online version of Nebulus (Tower Toppler) for ZX Spectrum. Nebulus (Tower Toppler) is a platform game with some distinctive unique features. Your character, a small green creature called Pogo, is on a mission to destroy eight towers that have been built onto 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...
Sinclair ZX Spectrum
Online emulated version of Nebulus (Tower Toppler) was originally developed for the ZX Spectrum an 8-bit personal
home computer released in the United Kingdom in 1982 by Sinclair Research. Referred to during development as the ZX81 Colour and ZX82, it was launched as
the ZX Spectrum by Sinclair to highlight the machine's colour display, compared with the black and white display of its predecessor, the ZX81.
The Spectrum was released as eight different models, ranging from the entry level with 16 KB RAM released in 1982 to the ZX Spectrum +3 with 128 KB RAM and
built in floppy disk drive in 1987.
The Spectrum is based on a Zilog Z80 A CPU running at 3.5 MHz (or NEC D780C-1 clone). The original model has 16 KB (16×1024 bytes) of ROM and either 16 KB or 48 KB of RAM. Hardware design was by Richard Altwasser of Sinclair Research, and the outward appearance was designed by Sinclair's industrial designer Rick Dickinson.
Video output is through an RF modulator and was designed for use with contemporary television sets, for a simple colour graphic display. Text can be displayed using 32×24 characters from the ZX Spectrum character set or from a set provided within an application, from a palette of 15 shades: seven colours at two levels of brightness each, plus black. The image resolution is 256×192 with the same colour limitations.