Join a film noir era private detective in Jack Hammer, a 15 reel, 25 payline slot from NetEnt. Highlights of this gumshoe drama are streak respins and a bonus round where up to 30 free spins are on offer with all payouts trebled. Play on all devices from between 25p and £250 per spin.

The design here is done like a classic comic strip and has a real 1930s flavour. You’ll see poison flasks, newspapers, phones, gun-toting mobsters and airships spinning around the reels. They’re joined by 4 higher value symbols. There’s a paperboy, a woman on the phone, the Evil Dr Wuten and Jack Hammer.

The private dick is the best paying symbol, awarding 2, 6 or 40 times your stake if you land 3, 4 or 5 in combination. There’s also a wild that replaces all other symbols apart from the scatter. Jack Hammer comes with 2 potentially exciting features.

Sticky Win feature – this extra is triggered every time you land a winner. The successful symbols are locked in place and the reels spin again. If you land a symbol that matches the original win or a wild, then they also lock in place and the process is repeated. The respins continue until there’s one where no new symbol or wild joins the cluster. A payout is then made featuring all the matching symbols.

Free Spins feature – this round is triggered by landing 5 or more free spin scatters. The more scatters, the more free spins on offer:

  • 9-15 scatters = 30 free spins
  • 8 scatters = 25 free spins
  • 7 scatters = 20 free spins
  • 6 scatters = 15 free spins
  • 5 scatters = 10 free spins

Regardless of the number of free spins you win, all payouts during this round are boosted by a 3x multiplier and trebled. Finding 5 scatters to trigger a round might sound tricky. The Sticky Win feature is your friend here.

There’s plenty to like about Jack Hammer. The comic book visuals work very well and there’s a suitably sleazy jazz style backing track to herald winning spins. You’ll have seen the streak spins and free spins in many other slots. They’re both good features though, especially when you factor in the 3x multipliers in the free spins round.

This retro blast is an enjoyable one. If you fancy some simple, comic book excitement then Jack Hammer offers plenty – you can also win up to 3,000 times your stake on each free spin. I advise you try the sequel Jack Hammer 2 Fish Business which is just as good, if not better.