Press the space bar to stop the wheel. Each wheel space does something different. +5, +10, +15, etc. all give you the amount of points shown times the multiplier. +Life awards an extra life. Fail makes you lose a life. Fast increases the speed of the wheel (and speed bonus). Slow decreases the speed of the wheel and speed bonus). Bonus unlocks a bonus wheel that allows you to earn even more points! The speed of the wheel and speed bonus gradually increase as the game goes on. If you lose all of your lives, the game is over! Try to get as many points as possible!
Now when you get points, you get the number on the segment times the multiplier CUBED!!! (Equation: +s = s*m^3; s = score, m = multiplier) It also affects the speed of the wheel, so it affects the score, too. Luckily, you can't go below x1.0, so you don't need to worry about having to restart your game. Otherwise, fun is plentiful. I may be going a bit too far with the "exponents" thing. Really, ^2 is enough, but ^3?! Come on!! But anyway, have fun!