Bench window: 21,304 spins at ₱1.20–₱24 stakes on HOYY production build 26.04.03.
Observed RTP
96.18% over the full bench — within 0.02 of the 96.20% PG Soft certificate. Clean.
Session volatility
Significantly higher than Super Ace: 20-spin standard deviation at 2.41× bet. Max session loss 62×, max win 1,140×, 90th-percentile session range −18× to +41×. Budget ₱800 for a 100-spin session at ₱5/spin to feel comfortable.
Payout mechanics — the twist
This is where PG Soft gets tricky. Fortune Ox 2 has two paths to the free-spins bonus: (a) trigger organically, around 1 in 220 spins in our bench; (b) enable "ante bet" for a 25% bet premium, which roughly doubles bonus-trigger frequency to 1 in 110 and runs a slightly lower effective RTP of 96.1%; (c) raw "bonus buy" at 120× bet, which we clocked at 94.8% observed RTP — over a point below the base game. The bonus buy is the trap. Ante-bet is defensible. Base game is fine.
Mobile UX
Tap targets good on Note 10. Art is flashier than Super Ace and does fatigue at 45-minute-plus sessions; spin-animation timing is slightly slower, which adds up. Sound design is excellent for 20 minutes, tolerable after that.
Responsible-play cues
PG Soft does not surface a time-elapsed counter inside the game. HOYY's account-level nudge compensates but this is a mild negative versus Jili titles.
Verdict — 8.3
Strong buy with one explicit warning: do not use the raw bonus-buy button. Ante-bet or base-game is totally fine. If you want higher variance than Super Ace and are OK managing a bigger session budget, this is a solid rotation pick.