Multicarts

Beatles Music Multicart button Astrocade Multicart called Beatles Music from Richard Degler by Mike White. Created in 2007.
Multicart by CPUWIZ button Astrocade Multicart by CPUWIZ. Released in 2004.
Multicart by GaMBITS Astrocade Multicart by GaMBITS. The official name for this is UltiMulti Cartridge. Released in June of 2008.
Multicart Astrocade Multicart by RetroKidz. Released in 2006. Available from 8-Bit Domain.
Multicart Astrocade Multicart by Ward Shrake. Released in 2002.