[quote name='Tsukento']Mainly because the majority of the shooters on the Dreamcast are mainly from 3rd party companies and unlicensed releases. This collection, and any possible future ones, will only have games made and released by Sega.[/QUOTE]
Agreed that is a problem, but for example Capcom could release Gigawing, Gigawing 2, and Mars Matrix on a compilation and it would certainly be better than this collection. There are SO MANY other great shooters that were ported to the Dreamcast too, like Zero Gunner 2, Border Down, and Under Defeat. But sadly I doubt any of those games will ever see the light of day in terms of porting to newer hardware, the shmups market is probably too small to support them.