Wispy is a ghost with a job. In Ghost Booster! GO Guaranteed, Play'n GO's cheerful little blue phantom drifts beside the reels of a cartoon haunted mansion, scooping up coins while purple dead trees, a fat yellow moon, and a nosy crow set the mood. It's Halloween played for laughs, not scares. The 5×3 grid runs on 20 fixed paylines, and the Wild steps in for everything except the two symbols that actually matter here: the Coin and the Collector Bag.
So how does Wispy earn his keep? Land 1 to 5 Coins on a spin with no Collector Bag present, and he sweeps them up for a reward on the spot. Neat, quick, and it keeps the base game ticking over between bigger moments. Every time he collects, there's a slim chance the Wheel of Spooks lights up. Spin it and you're guaranteed one of four bonus tiers: Mini 10x, Minor 25x, Major 100x, or the Grand at 1000x your bet.
The clever bit is the safety net. The GO Guaranteed Ladder climbs whenever the Collector Bag lands without any Coins alongside it, locking in a minimum between 20x and 100x total bet. That number becomes your floor once Hold & Spin fires, which happens when 6 or more Coins hit at once. You get 3 respins, and each fresh Coin resets the count back to 3. Only Coins and the Collector Bag appear during the feature. When it stops, you bank every Coin value, or the Ladder's guaranteed figure if that turns out to be higher. After the prize pays, the Ladder drops back to its start.
My one gripe? The regular line pays are pretty thin. The card suits and gramophone symbols won't excite anyone, and that's clearly deliberate, since the real money lives in the coins, the Ladder, and that Grand jackpot. This is a high volatility game built around waiting for the good stuff. RTP is set by each operator, so check yours before you commit. If a guaranteed floor on your Hold & Spin sounds reassuring, Wispy's happy to oblige.