Highway to Bell Stack & Collect™
Highway to Bell Stack & Collect™ drops players into a blazing rock concert in Hell, where Fireball symbols and tolling Bells drive every round. Land a Bell Collector alongside Fireball symbols and the Bell Collect activates, gathering every Fireball value on the reels into one payout. Even without the Collector, the Mystery Bell Collect can trigger on its own, sending Fireball values flying toward the giant Bell outside the reels for the same shot at a collection.
Land 3 Microphone symbols and the round steps up into the Stack & Collect™ Bonus, where Free Spins reset every time a new Fireball or Incrementer symbol lands. Incrementers boost every visible Fireball before becoming one themselves, and filling an entire reel with Fireballs sets its Bell tolling — collecting the values and building a multiplier up to 3x. Each reel can collect up to three times before locking in, pushing players closer to the Grand Prize.
Whether the Bell Collect or Mystery Bell Collect triggers, how far Incrementers boost the Fireballs, and how close a reel gets to locking in are all determined randomly.
Feature Breakdown
Main Game
Spinning the reels can land Bonus Scatters on reels 1, 3, and 5 to trigger the Stack & Collect™ Bonus, or Fireball values ready for collection through the Bell Collect and Mystery Bell Collect. Optional Bonus Bet and Inferno Bet wagers can boost the odds of triggering features and increase Fireball rewards along the way.
Bell Collect
When Fireball symbols land together with the Bell Collector, the Bell tolls and gathers the values of every Fireball on the reels, adding them together with each toll before awarding the total to the player.
Mystery Bell Collect
When Fireball symbols land without the Bell Collector, the Mystery Bell Collect may randomly activate instead, sending those Fireball values to the giant Bell outside the reels for the same collection and payout.
Stack & Collect™ Bonus
Landing 3 Microphone symbols triggers the bonus, starting with 3 Free Spins that reset whenever a new Fireball or Incrementer symbol lands. Incrementer symbols add their value to every visible Fireball before transforming into a Fireball themselves. Filling a reel entirely with Fireballs triggers its Bell to collect their values and raise its multiplier up to 3x, with each reel collectible up to three times before locking — progressing players toward the Grand Prize.
RTP: 92.00%
For full and accurate details on the game pay outs, bonus features and RTP, please refer to the in-game help pages.









