Well, the lot came in the mail today. My haul was this:

Battletoads

Mighty Morphin Power Rangers

Primal Rage

Shinobi II

Spider Man and the X-Men

Super Battle Tank

All work and all came in their own clamshell cases. So I'm happy. Another Positive Five-star feedback awarded to another seller I stumbled upon. So now I have 52 Game Gear games. One for every week of the year. Collecting for Game Gear is so fun! Too bad most of them out there are broken or have poor sound or dimly lit. 8 more games and I'll have to start another container's worth. 48 more and I'll have 100 games.