There is a large red ‘Wild' symbol that can substitute for all the other symbols except the scatter and bonus symbols.
The game's logo is the scatter symbol and it offers scatter payouts of up to 100x the total bet.
The slot features collapsing reels. What this means is that every time that you land a winning combination the symbols involved will explode and allow more to fall from above to fill the space. This will hopefully form another win and the process will repeat.
If you land the Free Games bonus symbol on reels one, three and five simultaneously you win fifteen free spins with collapsing reels and multipliers. Each time that you land a win, not only will the symbols explode allowing more to fall from above, but the payout multiplier will increase by 1x up to a maximum of 5x.
Hot Gems offers a top payout of 5,000x for landing five of the miner symbols across a payline. The lantern can payout up to 500x, the pickaxe can payout up to 400x, the mine cart can payout up to 200x, the yellow and red gems can payout up to 80x, the orange and green gems up to 40x and the blue and purple gems up to 60x.