Life doles out all sorts of rewards and punishments, and games can too.
Consider a small list of some of the types of rewards a player could receive for moving through a First-Person Character Arc. To create a punishment, just deny the player these things, or make the player lose them (or diminish them) if he or she already has them.
Rewards Type 1
The first type of rewards are those that help you win the game. For example, you could be rewarded with allies, people who join your side or who work harder to help you. With enough allies behind you, you may even become their leader.
Another common reward is increased abilities. These could be more speed, accuracy, power, or other forms of effectiveness at skills that you already possess, such as:
You could also gain:
This list could go on forever, but you get the idea.
Items vital to your mission make good rewards. For example, you could receive:
Finally, various types of power-ups are rewards that can also help you win the game.
Rewards Type 2
There are other rewards that are great to receive but that don't directly assist you in winning the game. For example, you could receive:
This list is far from comprehensive. It's simply to suggest the range of possible ways to reward a player.