Ultra Treasure at 666ph takes you on a deep-sea treasure hunt where every coin symbol that lands is held in place while the reels respin. Stack enough coins to trigger the Grand Jackpot, or collect scattered coin values for a massive payout — all from your phone, whether you're in Makati, Cebu, or Davao.
Ultra Treasure at 666ph is a hold-and-spin coin collector slot built on a 6×4 reel grid with 40 fixed paylines. The core mechanic is simple but deeply satisfying: land a coin symbol anywhere on the reels and it locks in place while the remaining positions respin. Each respin that produces a new coin resets the counter back to three respins. Keep collecting coins until the respins run out, then total up everything you've gathered — including any jackpot symbols that landed during the feature.
The game's visual theme is an underwater treasure vault — think sunken galleons, glowing coral, and chests overflowing with gold coins scattered across the ocean floor somewhere between the Philippine Sea and the Sulu Archipelago. The art direction is rich and detailed, with animated fish darting between the reels and a deep-blue ambient glow that fits perfectly with the 666ph platform's signature color palette.
Ultra Treasure runs at a certified 96.5% RTP with medium-to-high volatility. The base game pays through standard symbol combinations across 40 paylines, but the real action is in the Hold & Spin feature. Filipino players who enjoy the kind of slow-build tension you get from a PBA Finals Game 7 — where the pressure mounts possession by possession — will appreciate how the Hold & Spin respins feel as each new coin locks in and the potential payout climbs.
Ultra Treasure delivers frequent small wins in the base game, with the Hold & Spin feature providing the big payout moments. Set a comfortable session budget and enjoy the ride — the Grand Jackpot can trigger on any Hold & Spin round.
Hold & Spin active · 3 respins remaining · 9 coins locked
Four jackpot tiers plus standard symbol payouts across 40 paylines
Fill all 24 reel positions with coin or jackpot symbols during Hold & Spin. Progressive — resets at ₱1,000,000.
Land the MAJOR symbol during Hold & Spin. Fixed prize worth 500× your total bet.
Land the MINOR symbol during Hold & Spin. Fixed prize worth 100× your total bet.
Land the MINI symbol during Hold & Spin. Fixed prize worth 25× your total bet.
The Grand Jackpot requires all 24 positions to be filled. Higher bets increase the coin value multipliers, making each filled position worth more even if the Grand doesn't trigger.
| Symbol | 3 of a Kind | 4 of a Kind | 5 of a Kind | 6 of a Kind |
|---|---|---|---|---|
| 💎 Diamond Chest | ×20 | ×60 | ×200 | ×500 |
| 🏺 Golden Urn | ×12 | ×40 | ×120 | ×300 |
| 🐠 Clownfish | ×8 | ×25 | ×80 | ×180 |
| 🐙 Octopus | ×6 | ×18 | ×55 | ×120 |
| 🦀 Crab | ×4 | ×12 | ×35 | ×80 |
| 🐚 Conch Shell | ×3 | ×8 | ×22 | ×50 |
| 🦑 Squid | ×2 | ×5 | ×15 | ×35 |
| 🪙 Coin (Hold & Spin trigger) | 6+ coins anywhere trigger Hold & Spin. Each coin carries a multiplier value added to your total win. | |||
All payouts multiplied by your line bet. Wild (Treasure Chest) substitutes for all symbols except Coin and Scatter. Scatter (Anchor) triggers 10 free spins when 3+ land anywhere.
Land 6 or more Coin symbols to trigger. All coins lock in place, 3 respins awarded. Each new coin resets to 3 respins. Total all coin values plus any jackpot symbols at the end.
3 or more Anchor Scatters anywhere trigger 10 free spins. During free spins, coin values are doubled and the Hold & Spin trigger threshold drops from 6 coins to 4 coins.
Each Coin symbol carries a random multiplier from ×1 to ×500 of your line bet. Higher total bets increase the range of possible coin values, directly boosting Hold & Spin payouts.
The Grand Jackpot grows with every spin placed by every 666ph player. Fill all 24 reel positions during Hold & Spin to claim it. The jackpot resets at ₱1,000,000 after each hit.
From sign-up to your first Hold & Spin in minutes
Register with your mobile number in under two minutes. You must be 21 years or older to play. The registration form is fully mobile-optimized — works smoothly on any Android or iPhone.
Top up your 666ph wallet using GCash, PayMaya, BPI, BDO, or Metrobank. Minimum deposit is ₱50. Funds are credited instantly — no waiting, no delays, whether you're in Quezon City or Davao.
Click Ultra Treasure in the top navigation. The game loads directly in your browser — no app download needed. The 6×4 grid and all 40 paylines are visible immediately on both mobile and desktop.
Choose your total bet per spin from ₱50 up to ₱100,000. All 40 paylines are always active. Use Auto Spin for continuous play or manual spin to stay in control of each round.
Watch for 6 or more Coin symbols to trigger the Hold & Spin feature. All wins — including jackpot prizes — are credited instantly to your 666ph wallet. Withdraw via GCash anytime.
How Ultra Treasure's bonus states unfold as you dive deeper
Standard 6×4 reel play across 40 paylines. Symbol combinations pay left to right. The Wild (Treasure Chest) substitutes freely. Watch for Coin symbols accumulating — six or more anywhere triggers the Hold & Spin dive.
Three or more Anchor Scatters send you into 10 free spins set against a glowing coral reef backdrop. Coin values are doubled throughout, and the Hold & Spin trigger drops to just 4 coins. Retriggering is possible with 3 more Scatters.
The main event. All triggered Coin symbols lock in place on a darkened grid. Three respins begin. Every new Coin that lands resets the counter. MINI, MINOR, MAJOR, and GRAND jackpot symbols can appear during this stage.
If a GRAND symbol lands during Hold & Spin, the background shifts to a golden treasure chamber. The progressive jackpot meter locks in and the full Grand prize is awarded on top of all accumulated coin values.
Fill all 24 positions during Hold & Spin to claim the Grand Jackpot and trigger a full-grid celebration sequence. All coin values are summed, all jackpot symbols pay out, and the total is credited to your 666ph wallet in one transaction.
Hold-and-spin coin collector slots have become one of the most popular formats in online gaming, and Ultra Treasure at 666ph is one of the strongest examples of the genre available to Filipino players. The format works because it gives you something concrete to root for on every spin — each Coin symbol that lands is a visible, locked-in contribution to your final payout, and the respin counter creates a natural tension that builds with every new coin that appears.
The 6×4 grid gives Ultra Treasure more real estate than a standard 5×3 slot, which means more positions for coins to land and a higher ceiling for Hold & Spin payouts. With 24 total positions on the grid, a fully-filled board during Hold & Spin is a rare but genuinely achievable event — and when it happens, the Grand Jackpot triggers on top of the sum of all individual coin values. For players who enjoy the kind of all-or-nothing moments you get from a UFC title fight or a PBA championship series, that full-grid scenario is the equivalent of a knockout in the final round.
The Anchor Free Spins round adds a second layer of value. The trigger threshold for Hold & Spin drops from 6 coins to 4 during free spins, which means the feature triggers more frequently. Combined with doubled coin values, a free spins round that includes even one Hold & Spin activation can produce a payout that dwarfs anything the base game delivers on its own. Retriggering is possible, so a single free spins session can extend significantly if the Scatters keep appearing.
Deposits and withdrawals at 666ph are built around the payment methods Filipinos use every day. GCash and PayMaya top-ups are instant, and BPI, BDO, and Metrobank transfers are processed quickly. The ₱50 minimum deposit means you can start an Ultra Treasure session without a large commitment — useful for getting comfortable with the Hold & Spin mechanics before scaling up your bet size. GCash withdrawals are typically processed within 15 minutes, so your winnings are accessible quickly.
The progressive Grand Jackpot is a genuine draw. Because it grows with every spin placed by every 666ph player across the Philippines — from Manila to Cebu to Davao — the jackpot can climb to significant amounts between hits. The live jackpot meter is displayed in the game at all times, so you always know exactly what you're playing for. The jackpot resets at ₱1,000,000 after each hit, meaning even a freshly-reset Grand is a substantial prize.
Ultra Treasure sits alongside other popular 666ph titles including Fortune Bingo, Ocean Phoenix, Win Drop, Monkey King, and Snooker — each offering a different gameplay style but all sharing the same fast deposits, quick withdrawals, and mobile-first experience. If you enjoy the hold-and-spin format and want a game with a strong jackpot structure and a visually rich underwater theme, Ultra Treasure is the standout choice on the 666ph platform.
New players at 666ph may find welcome promotions applicable to Ultra Treasure. These offers rotate regularly, so it's worth checking after you register. All bonus terms are clearly stated in the Terms & Conditions — 666ph keeps things transparent so there are no surprises when it comes time to withdraw. The platform operates under PAGCOR's regulatory framework, giving Filipino players confidence that the games are fair and payouts are reliable.
During the Anchor Free Spins round, the Hold & Spin trigger drops to just 4 coins and all coin values are doubled. If you're aiming for the Grand Jackpot, the free spins round is your best opportunity — the lower trigger threshold means Hold & Spin activates more often, giving you more chances to fill the grid and claim the progressive prize.
21+ Age Restriction — Play Responsibly
Ultra Treasure at 666ph is strictly for players aged 21 years and above. This is a medium-to-high volatility game — please only wager amounts you are comfortable losing. Gambling is entertainment, not a reliable income source. If you feel your gaming habits need attention, visit our Responsible Gaming page for deposit limits, cooling-off periods, and self-exclusion tools.