Ultimate Stack™ – Gorilla (Pile’em Up)
About this machine
ULTIMATE STACK™ GORILLA : Wild excitement builds from nature’s raw power. Select from three play options with increasing numbers of lines or a fourth option that includes max line play, a special area on the top of reels that extends the area where scatter symbols can appear, increases the number of wild symbols on reel 5, and makes the jackpot feature available. The free games feature consists of a randomly determined number of free games in which the reels contain a greater number of the top paying symbol.
* Please note not all cabinets are available in all regions.
Description sourced from the manufacturer's public product page.
Looking for Ultimate Stack™ – Gorilla (Pile’em Up) footage
We searched YouTube for this title and found no clip whose name matches it — it may be new, rare, or only shown inside longer live sessions. Search YouTube for Ultimate Stack™ – Gorilla (Pile’em Up) ↗
Below are other Aruze Gaming machines — not this one — in case you want a feel for how the manufacturer's games play.
Artwork & cabinet
Where Ultimate Stack™ – Gorilla (Pile’em Up) sits in Aruze Gaming's range
Ultimate Stack™ – Gorilla (Pile’em Up) is part of Aruze Gaming's Ultimate Stack line, which runs to 4 documented titles. Manufacturers ship a hit as a family rather than one box, so entries in a series share branding and often a bonus structure while carrying different maths.
What's the RTP of Ultimate Stack™ – Gorilla (Pile’em Up)?
There isn't one number — and any site quoting you a single figure is describing a different product.
Manufacturers ship the same title in multiple par versions, commonly spanning roughly 85% to 96%. The casino chooses which one to install, and that choice is not disclosed on the machine. Nevada regulation only sets a floor: every wager must theoretically return at least 75%.
What regulators actually publish is hold percentage — realised performance after player behaviour, aggregated by region and denomination. It is never broken out by game title. So the honest answer for any land-based machine is a range plus an unknown configuration, not a single figure.
Figures quoted elsewhere for this title are almost always taken from its online version, which is a different product with a different maths model.
Where to play
We don't yet have verified floor placements for this machine. Our casino cross-reference covers 442 properties, but only through IGT's public linked-progressive data — which doesn't reach Aruze Gaming titles. We would rather show nothing than guess.
Rest of the Ultimate Stack line
All 4 Ultimate Stack machines →4 titles carry this branding. They share artwork and usually a bonus structure, but each ships its own maths.
Most-filmed Aruze Gaming machines
All 432 Aruze Gaming machines →The titles from this manufacturer that slot channels actually put on camera.
