$15 thrift store haul

Silk screen Marushka print, 8 pin male to female din cord to use as an extender(now I can sit on my couch to play tg-16 games), Genesis games in cases to replace my loose ones, Thunder Force 2 for a friend
and at the bottom is a mystery SNES game. WHAT COULD IT BE?

Ahhh the suspense is killing me, it has a battery so that might eliminate most sports titles. Any guesses before I pop it in??