A random shot is flashing yellow to cast the spell, and the spinner is flashing blue to increase the spell's power.

The starting value of the yellow shot is 1,000,000 points.

Every spin of the spinner increases the value of the yellow shot by 10% its current value (maxes out at 10,000,000).

Shooting the yellow shot casts your spell and awards the value (also, the value resets to 1,000,000 and a different shot is flashing yellow).

The current value is displayed on the DMD next to the yellow dollar-sign.