[Graystripe2000]

Sonic jump fever came out today for iOS  devices for free today, and I downloaded it, played it for a half hour only to end up running out of energy for the second time. The problem: I DON'T HAVE ENOUGH STUFF TO REFILL IT! Seriously, why add an energy bar when something like this can happen?

[NebulaVista]

To make money?

[Arazeml]

It sounds like Angry Birds GO!
Good for a few uses but then everyone gets tired so you have to wait for them to recharge which may take a whole day just to play again.
Iii could be way wrong though, having never played a Sonic Jump. . .

And yes, it is to make money.