Jumpasaurs! (Jinx Gaming) – Slot Review

Jumpasaurs! by Jinx Gaming blends classic fruit-machine nostalgia with a playful dinosaur twist, creating a theme that feels both retro and cartoonish at the same time. The slot mixes traditional casino imagery — fruits, bells, sevens and lucky symbols — with colourful prehistoric mascots that “activate” reels, giving the game a light-hearted arcade vibe rather than a serious adventure setting.
Visually, the game leans into bright colours, chunky icons and animated dinosaurs that bounce around the reels, reinforcing the idea of chaos and unpredictability. Instead of realistic prehistoric environments, the design feels closer to a neon arcade cabinet, where dinosaurs act more like mischievous characters than ancient creatures.
Overall, Jumpasaurs! presents a quirky fusion of old-school slot aesthetics and modern cartoon humour. The prehistoric theme is used mainly as a fun visual layer over a fruit-slot foundation, giving the game an energetic, casual tone aimed at players who enjoy playful, fast-paced designs rather than dark or cinematic themes.
Jumpasaurs! features a 5-reel, 5-row layout with 19 fixed pay lines. This high-variance slot offers an RTP of 96.28% and a maximum win potential of up to 10,000x the stake, with betting options ranging from £0.10 to £100 per spin.
Jumpasaurs! Symbols & Pay Table

The game includes 12 symbols in total. Low-paying symbols are represented by classic fruit icons such as grapes, cherries, lemons, oranges and apples, while premium symbols include four-leaf clovers, horseshoes, bells and sevens. In addition, the slot features Wild, Mystery and Bonus symbols, with the Wild being the highest-paying symbol, awarding up to 150x for five across a pay line.
Jumpasaurs! Features & Mechanics

A core mechanic is the Activated Reels feature. On every base game spin, between one and three reels become active, marked by dinosaurs at the bottom of the grid. Mystery Symbols only unlock their potential when landing on activated reels; otherwise, they remain inactive.
When revealed, Mystery Symbols can transform into coins, Wilds, Wild Multipliers or Scatters. Coins appear in bronze, silver or gold variants, each carrying fixed values that pay instantly as multipliers of the total bet. Wild symbols substitute for regular symbols, while Wild Multipliers apply additive multipliers to any winning combinations they participate in. Mystery Symbols may also reveal Scatters, which trigger the bonus feature.

The Extinction Spins bonus is activated by revealing a Scatter during the base game and awards eight free spins. During this feature, all reels remain permanently activated, ensuring that every Mystery Symbol collected reveals its reward. The bonus retains the base game mechanics but increases the potential for frequent reveals and enhanced payouts. Players also have the option to purchase direct entry into the bonus round for a higher stake.
Conclusion
Jumpasaurs! by Jinx Gaming delivers a refreshingly fun take on the modern slot formula, blending classic fruit-machine elements with energetic dinosaur chaos. The video game–styled visuals and arcade-inspired mechanics give it a unique personality that stands out from more traditional releases, and it’s easy to see why players who enjoy retro gaming aesthetics will find it especially appealing. The activated reels and mystery reveals keep gameplay feeling dynamic, while the colourful presentation adds a layer of charm throughout. Overall, it’s a lively, entertaining slot that feels designed for players who appreciate creativity and a strong video-game vibe alongside solid win potential. Be sure to try out this game on launch and check out our exclusive casino offers.