If the wheel lands on the Hyper Wheel symbol during the Wheel Feature, the Hyper Wheel feature is awarded, and the number of Free Spins count is displayed in the inner wheel. The amount of coins each Hyper Wheel symbol rewards for every Free Spin goes up. For example, for the 1st free spin, each HYPER Wheel symbol would reward X coins. For the 2nd free spin, each HYPER Wheel symbol would reward X+Y coins. So on and so forth.
Note that QUICK WIN symbols are ineffective in this feature and do nothing, and they don't trigger Jackpots.
fig: Hyper Wheel Feature Game
fig: Hyper Wheel Feature Pop-up