Jupiter Mission 1999 is a great pick. I remember playing it on the 64 back in the day.
I would also recommend for the A8: Gateway to Apshai, Crush, Crumble and Chomp!, and the Temple of Apshai Trilogy.
Another great game from Epyx is Silicon Warrior. The A8 version is really good but I would give the 64 version a slight edge. Epyx was such a great software company back in the day. My favorite game on the A8 is Realm of Impossibility aka Zombies. Realm of Impossibility is fast paced and incredibly fun especially when playing the 2 player cooperative option.