A sleepy pensioner, a pet fish and a living room that really wasn't prepared for what came next set the scene in Piranha Pays from Play'n GO. Behind the comedy is a 5 reel slot with 30 paylines, a roaming Piranha Wild, random multipliers and a free spins round where both the fish and the grid can grow. The premise starts off rather wholesome. The piranha, naturally, has other plans.
Piranha Pays takes place in an elderly man's living room, complete with an armchair, old television, record player, house plants and enough snacks to explain why the fish has become ambitious. The main grid doubles as an aquarium, with water and a small castle visible behind the symbols.
The paytable is full of food, from ham and pie to fried eggs, biscuits and cake. Then there are the piranhas themselves, which become progressively bigger and less friendly as the bonus develops.
We like how Play'n GO commits to the joke without making the screen too busy. Cheerful music and cartoon animations keep the mood light, even as the resident fish gradually turns into something that looks capable of eating the furniture. The visual changes during free spins also make each new level easy to spot.
The paytable begins with four colourful card symbols before moving into increasingly valuable plates of food. Compared with many online slots, the symbol set is unusually committed to the theme, right down to the ham being the most valuable regular icon.
A win multiplier can appear on any spin and applies to all line wins from that round. The multiplier ranges from 2x to 10x.
The same feature remains active during free spins, so the growing grid and roaming Wild can potentially combine with an added multiplier. It is a simple extra, but it fits the rest of the game nicely because nothing has to stop for a separate bonus screen.
When Scatters appear on reels 1 and 3 and the free spins trigger narrowly misses, there is a random chance for a Mystery Instant Win to appear.
The prize is shown on the Scatter on reel 3 and can be worth 5x, 10x, 15x or 20x the stake. It gives a near miss a little more purpose, which is a fairly cheeky use of the third reel.
Three Scatters trigger 10 free spins and open the progression trail.
Scatter cans can appear on reels 1, 3 and 5. Every 3 collected cans move the bonus up one level, add 5 extra free spins and increase both the size of the fish tank and the Piranha Wild.
The Piranha stays on the grid throughout the bonus and moves to a new position on every spin.
The base game begins with 5 reels, 4 rows and 30 paylines. Wins run from left to right across the active lines, with the Piranha stepping in as the Wild whenever a regular symbol needs replacing.
Things become much less static during free spins. Each level makes the grid taller, adds more paylines and increases the size of the roaming Piranha. The fish remains visible throughout the round but shifts position after each spin, so its influence changes constantly as the tank grows.
That progression gives Piranha Pays a different feel from many online casino games built around a fixed grid. Instead of simply adding more spins, the bonus gradually changes the space where those spins happen.
We'd put these three nearby for their expanding grids, oversized Wilds or playful Play'n GO style.
We think Piranha Pays has more personality than its mechanics initially suggest. The living room setting, sleepy owner and increasingly ridiculous fish give the whole thing a proper identity before the bonus even begins.
The free spins are where everything clicks. Growing the tank, adding paylines and making the Piranha larger gives each level a visible sense of progress rather than simply adding another handful of spins. We also like the roaming Wild because its value changes naturally as more of the grid comes within reach.
The only small drawback is that a larger tank also gives the fish more room to miss the spots we would quite like covered. Apparently even an enormous piranha can respect personal space.
For us, this suits players who enjoy evolving bonus rounds rather than one fixed feature repeated from beginning to end.