Greentube Brings The House Down With Highway To Bell Stack & Collect™

Greentube, the NOVOMATIC Digital Gaming and Entertainment division, has launched Highway to Bell Stack & Collect™, a five-reel, 20-win-line slot set in a hell-themed rock concert.

The game features fireball symbols, a giant bell and multiple collect mechanics, alongside a bonus feature with Free Spins and multiplier opportunities.

Bell Collect Mechanics Drive Base Gameplay

The Bell Collect feature is activated when fireball symbols land alongside the Bell Collector.

The bell tolls and collects the values of all fireballs, with each toll adding to the total. Once the collection is complete, the accumulated value is awarded to the player.

When fireball symbols land without the Bell Collector, the Mystery Bell Collect feature can activate randomly. The fireball values move towards the giant bell outside the reels, which tolls and collects the values in the same way when triggered.

Stack & Collect Bonus Adds Free Spins

Landing three microphone symbols on reels one, three and five triggers the Stack & Collect™ Bonus.

Players begin with three Free Spins, which reset whenever new fireball or incrementer symbols land. Each incrementer adds its value to all visible fireballs on the reels before transforming into a fireball itself.

When a reel is filled with fireballs, the bell above it collects their values and increases its multiplier to 3x. Each reel can be collected up to three times before locking, allowing players to progress towards the Grand Prize.

The game also includes optional Bonus Bet and Inferno Bet features, which increase the chances of triggering the bonus and enhance fireball rewards.

Greentube On Highway To Bell Stack & Collect

Highway to Bell Stack & Collect™ combines a hard-rock theme with layered collect mechanics across the base game and bonus round.

Richard Ganster, director of games strategy and games portfolio management at Greentube, said:

“Highway to Bell Stack & Collect™ takes players to a rock concert in Hell, and every element of the game is built around that energy. The Bell Collect and Mystery Bell Collect keep the base game rewarding on every spin, so players always have something to watch for.

“The Stack & Collect™ Bonus is where the title really delivers. Locking in fireball values, reel by reel, and pushing toward the Grand Prize give players a clear sense of progression and a strong ceiling on win potential. It's a title that fits operators looking for a hard-rocking hit with genuine depth to its feature set.”