Quoted By:
>extra day to get more backstory and gameplay if you get the best ending
>extra boss fight in the day, along with the mall being cleared of zombies at certain points, letting players see what the place has to offer without any pressure
>tank fights
>clearing the extra day unlocks an arcade-style Infinite Mode
>multiple endings in general
>unlockables that revolve around clearing certain tasks and then getting a good ending, provides many ways to go through the game (Mega Man's buster)
