Finally I found it, an old magazine where my game was reviewed, many years ago....
I scanned it and added to this web-site, for old guys like me that played with Amiga and Ken.
The demo was developed using AMOS, a kind of BASIC suited for game developing, then the final version was fully written in Assembler 68000, with a full implementation of the controller for the custom chip, Paula for the audio, Copper for screen effects, Blitter for sprites and Denise for screen control !!!
Was developed during the night, after I was at the univ, from 11 to 4, 5 AM in the morning.
I ask myself how can I be still alive :)
Nowaday that I develop Intranet applications in Java those days appear like a geological era......