I dont always have people to play ball race with me, and besides Minigolf - It’s the most SinglePlayer(SP)-Friendly game world. So here is a new way to get money while alone in Ball Race.
Speedy: Finished the level while you still have a lot of time ( 2 Levels: Half the time: 150 U, and three quarters: 200 U)
For example: You finished a 60 Second Level in 15 seconds while alone, so you get an extra 200 U.
this may also work for 2 Players since finishing place doesnt count