About
Xevious is a 1983 vertically scrolling shooter by Namco, released in North America by Atari in February 1983, in which the player pilots the Solvalou starship, using a zapper against flying enemies and a blaster against ground targets; an upgraded arcade version, Super Xevious, followed in December 1984. Xevious1200 is a line-by-line transcode of the original arcade game's disassembled Z80 ROMs into 68K assembly, targeting Neo Geo hardware (AES/MVS/CD) as its primary platform and the AGA Amiga (an A1200 with fast memory is recommended) as a secondary target. The core transcode is complete and playable with sound both on real Neo Geo hardware and in emulators; a Neo Geo Beta1 build and the Amiga version are both distributed via itch.io.
How it differs from the original
The port reproduces the arcade game's play identically, including its original pseudo-random number generation, dipswitch options (except cocktail cabinet mode), and all original graphics and colors on the Neo Geo target; one unconfirmed gameplay bug remains outstanding in the core transcode.
Getting started
The Neo Geo build can be run in the MAME emulator or on real AES/NGCD hardware; building it from source requires the NeoDev kit on Windows. The Amiga build needs Bebbo's Amiga GCC compiler and Python-based asset-conversion scripts. On Amiga, a 2-button joystick is recommended, with fire, bomb/coin, and start mapped to the joystick buttons and number keys.
Known limitations
- gameplay: One "last" gameplay bug to be confirmed in the core transcode.
- compatibility: Cocktail cabinet mode is not supported.
Media
Additional notes
- Credits
- Credits the reverse-engineering and Neo Geo work to Mark McDougall (tcdev), the Amiga port's code and assets to Jean-Francois Fabre (jotd), and the Amiga music to Andrzej Dobrowolski (no9).