That's it, really...
but what could this box contain? Bagels? Hope? Music?

Actually, it's all of the above. (I've included a selection of tracks from games I've played and games I plan on playing at some point.)

Megadimension Neptunia VII - Will Be Venus
Fairy Fencer F Advent Dark Force - Within A Resonating Space-Time
Destiny: Rise of Iron - Sepiks Redux
Danganronpa 2 - Hope vs Despair (2nd Mix)