"Missing" arcade cores

[misterrocks]

I ran update_all on my MiSTer and it pulled in an incredible collection of arcade games but I noticed some are "missing" such as Mushihimesama and Twin Hawk. Should those have been pulled in or just not available yet?

[CMR]

Not every arcade pcb has a core for it. Cores are written for boards and play the games developed for those boards. That's why you don't see those games.