Belts. That's the entire hook. Base game on Muay Thai runs a standard 243-ways engine across a 5×3 Thai-boxing grid, but the real action is in the championship-belt icons landing with pre-stamped multiplier values baked into each one. Stack 5 or more belts anywhere on the grid and the Bonus Game triggers, awarding 5 to 15 respins depending on the trigger size. Collected belts lock in place and every new belt landing during the round adds to the running total.
Three belt tiers operate inside the bonus. Bronze carries small face values from 0.1x to 1x base bet. Silver sits in the mid-range, 1x to 30x. Golden splits into two distinct variants. Prize Belts come pre-stamped with GRAND, MAJOR, or MINOR jackpot labels (fixed amounts shown permanently on the banner across the top of the play area). Collection Belts work differently – they sum every belt value currently on the grid (excluding Prize Belts) and pay that total as a single Golden Belt bonus. A Collection Belt landing late in a respin sequence with a board full of Silver and Bronze belts is where rounds start building serious totals.
Multipliers compound. X2 symbols only appear inside the Bonus Game, and each one doubles every belt value on the grid except Prize Belts – and the doubling is multiplicative, not additive. Two X2s yields 4x total. Three yields 8x. Four yields 16x. Then the Full Grid mechanic on top of all of that: fill all 15 cells with belts in a single respin sequence and the game doubles every belt's stored value, clears the grid, and resumes remaining respins with a fresh collection underway. A Special Double Grid mode can also fire at bonus entry, splitting the play area into two parallel 5×3 grids running different outcomes with both totals counting. Stack the layers and the variance gets fierce.
Free spins are a separate path. Three scatters land only on reels 2, 3, and 4, and three of them produce 10 free spins with +2 retriggers on each additional scatter inside the round. Wild substitutes on reels 2 through 5 only, never reel 1. Main paytable runs A-K-Q-J-10 boxing-themed royals alongside fighter portraits and mongkol crown accents. Buy Bonus button on the upper-left rail gives direct entry to the belt-collect round. Stadium backdrop with spotlights overhead, red-and-gold ring ropes framing the reel cabinet, the GRAND/MAJOR/MINOR jackpot banner permanently fixed across the top. Bet range runs 0.20 to 50.00. Honestly, four overlapping bonus mechanics on a single bonus round is a lot of design ambition for what's notionally a sports-themed slot.