Nebulus - Mission 1 - Walkthrough - (aka Tower Toppler, Castelian, Kyorochan Land, Subline)

Nebulus Atari ST Version Mission 1 Guide showing how to complete each tower. Playthrough is edited and not a single continuous session. Each tower was done in one take but the towers were all played at different times. Description from wikipedia -
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 (キョロちゃんランド Kyorochan Rando), Subline and Tower Toppler. 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 gameplay 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 noted 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 versions, but not for example in the ZX Spectrum version), where he can shoot various kinds of fish to score bonus points. ----------------------- Developer(s) Hewson Consultants Publisher(s) Hewson Consultants, U.S. Gold, Triffix Entertainment Inc. Designer(s) John M. Phillips Composer(s) John M. Phillips, David Whittaker (Game Boy/NES) Year Released - Platform(s) 1987 - Amiga, Atari ST, ZX Spectrum, Amstrad CPC, C64, Game Boy, NES, Atari 7800, Acorn Archimedes, Wii Virtual Console, MS-DOS 1991/2 - Game Boy 2008/9 - Virtual Console Genre(s) Platform game Mode(s) Single-player