The short answer is yes, with a caveat.
If you are a casual player who just wants to beat the final boss, ignore the gallery. It will add 20-30 hours of grind to a 10-hour campaign. shinobi girl gallery mode
But if you love:
...then diving deep into the Shinobi Girl Gallery Mode is the definitive way to experience the game. It transforms a standard action game into a collect-a-thon that respects your time and rewards your curiosity. The short answer is yes , with a caveat
The Gallery Mode in Shinobi Girl is a standard but critical component of the game's user interface, designed to catalog and replay unlocked content. The short answer is yes
Why do players spend hours trying to unlock a mode that essentially removes the gameplay?