WILDs:

WILD symbols appear on reels 2, 3, 4 and 5 only.

WILD symbols substitute for all other symbols except scattered Diamond symbols.

Rhino Features:

Before each spin of the reels in the base game, up to two of the following features may trigger:

Expanding Reels - 1 or more random columns are stretched to have up to 6 active rows.

Extra Rhinos - 1 or more random reels are selected to be replaced with reels that contain more Rhino symbols.

Bonus:

3, 4, 5 or 6 scattered Diamond symbols triggers the Bonus and awards 5, 8, 15 or 20 free games respectively.

After triggering the Bonus, one spin of the Wheel is awarded.

Possible Wheel outcomes are START, FREE GAMES, MAJOR, MINOR or MINI. 

START begins the free games.

FREE GAMES awards 2 - 50 free games and awards an additional spin of the Wheel.

MAJOR, MINOR or MINI awards the respective progressive jackpot prize and an additional spin of the Wheel.

Up to 6 FREE GAMES may be landed on during a single Bonus trigger.

Each Wheel wedge may be landed on only once.

The maximum number of free games awarded from the Wheel is 50.

The Rhino Feature may be triggered before each spin of the free games.

During the free games, each WILD that appears in a winning combination may transform into a 3X WILD or 2X WILD symbol, multiplying the values of each winning combination by 3X or 2X respectively.

During the free games, 2 or more scattered Diamond symbols award additional free games.

Mega Play:

Press MEGA PLAY for the opportunity to wager 1000, 2000 or 5000 credits and play 3 MEGA SPINS.

For each MEGA SPIN, expanding reels may be awarded. However, extra Rhinos cannot be awarded during MEGA SPINS.

During each MEGA SPIN, each WILD symbol on reels 2 and 3 that result in a winning combination may transform into a 2X WILD or 3X WILD symbol. (The probability of WILDs transforming on reels 2 and 3 increases when the MEGA PLAY is played with 5000 credits.)

During each MEGA SPIN, each WILD symbol on reels 4 and 5 that result in a winning combination may transform into a 2X WILD.

Any scattered Diamond symbol that lands on the reels during MEGA SPINS will lock and be held in place for the remaining spins. Any other Diamond symbols on the same reel will be transformed into WILD symbols. If a scattered Diamond symbol lands on an expanded reel, that reel will also remain expanded for the remaining MEGA SPINS. 

Scattered Diamond symbols are only evaluated at the end of the third MEGA SPIN.