by EndorphinaReleased Nov 12, 2025
Endorphina's fruit-themed Hold & Win slot with a Bell Bonus Game, 4 jackpot tiers up to 750x, a Lucky Time safety net, and a 3x full-grid multiplier.

Game Type
RTP
96.06%
Volatility
High
Max Win
2,900x
Grid
5x4
Reels
5
Rows
4
Paylines
40 Fixed Paylines
Min Bet
$0.4
Max Bet
$100

Mr. Bells 40 takes Endorphina's mustached bell mascot out of his Christmas sweater and drops him into a 5x4 fruit machine. The "40" in the title is the payline count - all fixed, all active. It's a straightforward setup: cherries, lemons, grapes, plums, and sevens across the reels, with a Wild that substitutes for everything except Scatter and Bell symbols. Wilds appear stacked, which matters on 40 lines. A full column of them can light up a dozen wins at once.
The Scatter star pays up to 1,000x your bet for five on screen. That's a standalone payout, separate from any bonus feature. Worth watching for.
Land 6 or more golden Bells anywhere on the grid and the base game reels flip into a Hold & Win board. Each Bell carries a prize value - could be 1x, could be 750x. The reality? Most land between 1x and 5x. You get 3 respins to start, and every new Bell resets that counter back to 3.
The prizes break down into tiers: Regular (1x through 50x), MIN Jackpot (10x), MID (50x), MAX (75x), and ULTRA at 750x. A counter tracks how many Bell positions remain empty. Fill all 20? Every prize on the grid gets multiplied by 3. That's where the 2,900x max win lives - but filling a 5x4 grid completely takes serious luck.
The bonus plays at whatever bet triggered it. No bet adjustments, no retriggering. Clean and simple.
Here's something you don't see often. If 5 or fewer Bells land during a spin (not enough to trigger the bonus), the game sometimes steps in. Lucky Time activates randomly, placing extra Bells on the reels until you hit 6 and the Bell Bonus fires. It's a second-chance mechanic that keeps the bonus accessible even when you're one Bell short.
Separate from the Bell Bonus, Mr. Bells 40 includes Endorphina's Progressive Mystery Jackpot system with GRAND, MAJOR, and MINOR tiers. These trigger randomly - no special symbol combination needed. Higher bets improve your odds, but the draw itself is pure chance. You can't gamble jackpot winnings in the Risk Game, and only one jackpot fires per draw.
After any base game win, you can enter a card-picking gamble round. Beat the dealer's card and your win doubles. Lose and it's gone. Up to 10 rounds, with an average RTP of 84% per round. The probability isn't evenly distributed across cards - picking against a 2 gives you 162% theoretical return, while picking against an Ace drops to 42%. The base game RTP of 96.06% doesn't include this feature.
This is the second game starring Endorphina's bell character. The first, Mr. Jingle Bells, was a compact 3x3 Christmas slot with 5 paylines and a pick-me bonus. Mr. Bells 40 scales everything up - bigger grid, more paylines, a full Hold & Win system instead of a simple pick game. The character stayed, the mechanics grew.
40 fixed lines at a 0.40 minimum bet means every spin covers the full grid. At the $100 max, the Ultra Jackpot alone would pay $75,000. Pair that with the 3x multiplier and scattered line wins, and the math starts adding up.
One honest knock: the bonus round tends to fill slowly. Most Bell values land low, and running out of respins with half the grid empty is the usual outcome. The Ultra Jackpot and full-grid multiplier are there for the highlight reel, not the average session.