The minimum bet is the number of coins multiplied by 25 (with the “All Ways” mode in effect, Microgaming’s apparently settling on 25 for a payline number).
The “Treasure Vault Feature” – a “pick ‘em”-style bonus round – is triggered, naturally, with three or more scatter symbols landing on the reels in a single spin.
In the bonus round, three treasure vaults are presented: Of water, earth and fire; the player progresses through the vaults in this order, incidentally. In each vault, the player chooses from among 10 orbs. Within each orb is hidden coins or an advancer into the next vault.
Once the player is in the fire vault, the orbs may conceal coins or an “end feature” result.