Avalanche
All symbols which are part of a win explode and leave space for additional symbol drop, and an additional row of symbols is added at the top up to a max of 8 rows. Continues if new winning combos appear.
Nitro Reels
Small Nitro Reels cover two symbol positions and contain 4, 6, 8, 10 or 12 1x1 payout symbols. Big Nitro Reels cover six symbol positions and contain 2, 3, 4, 5 or 6 2x2 payout symbols.
Redrop
All bonus symbols and Nitro feature symbols remain, and Nitro Reels respin during the Redrop.
Both Ways
All winnings are paid out from left to right and right to left.
Nitro Match
Nitro reels on the same and on adjacent reels as the Nitro Match symbol match with a payout symbol on an adjacent reel of the Nitro Reel.
Nitro Upgrade
Nitro Reels on the same and on adjacent reels as the Nitro Upgrade symbol upgrade and additional symbols are added to the Nitro Reels.
Nitro Wild
All symbols in the Nitro Reels on the same and on adjacent reels as the Nitro Wild symbol will be replaced by wild symbols.
Bonus Game
Three or more bonus symbols trigger the Free Spins bonus game. All Nitro Reels are sticky during the free spins. Free spins can be retriggered.
In the bonus game the safety level advances one row for every new free spin initiated that results in a win. Every new free spin starts at the current active safety level.
A combination of bonus symbols and a super bonus symbol triggers the Super Bonus Game which is played at 8 rows and with Both Ways activated.
For information on symbols and base game instructions, please see in-game help menu.