Halloween Jack by NetEnt is a five-reel slot with three rows and 20 fixed paylines. The game uses a bet range from 0.20 to 100 per spin and is marked by high volatility. Players win by landing matching symbols across the paylines, with Jack-o-lantern wilds substituting for other paying symbols.
A key feature is the walking wild mechanic: each wild triggers a respin and moves one reel to the left on every respin until no wilds remain. Wins involving a walking wild receive a 3x multiplier. Scatter symbols can award 10 free spins for three or more scatters, with five extra free spins added if another three scatters land during the bonus round.
During free spins, lantern symbols on the fifth reel can unlock the Jack-O-Lector bonus. Three lanterns create a stacked hell hound wild, six lanterns form a stacked Jack-o-lantern wild, and nine lanterns trigger an expanding Reaper wild. A demo version is available on the page, allowing players to play for free and practice before playing for real money.