This feature-rich progressive video slot by WMS is inspired by the same-name American sitcom that had over 250 episodes broadcasted for 10 years. The slot is based on the 5×4 reel layout and its symbol set includes main characters of the series such as Fonzie, Joanie, Charles ‘Chachie’ and Richie as well as a standard 9 to A set of poker cards. There are 40 fixed paylines, each accepting up to $5, so the max wager consists of $200 per spin, which is a good offer for high-rollers. The maximum cash prize of $25,000 is granted for hitting five wild symbols.

Bonus features

Hitting three, four or five Vinyl Record scatters activate a lucrative Record Picker Bonus where you can win one of the following prizes:

• Jukebox Bonus. You are awarded five free spins with stacked Golden Record icons that transform into any high-paying symbol
• Rock ’n’ Roll Bonus. The symbols visible on the reel area will be reshuffled and arranged into a winning combination
• Wild Reels Bonus. A random number of one to five reels will turn into wild
• Colossal Happy Days Bonus. A 3×3 colossal wild symbol will appear on the reels with the increased chance to produce a big win
• Progressive Jackpot.

The slot also has a special Jukebox symbol with 3+ of them activating a free spin round that follows the same rules as the Jukebox Bonus described above does. Finally, there is a wild symbol represented by the slot’s logo. The wild may display in groups of two, three or four symbols covering the entire reel and creating more winning chances.

Progressive Jackpot

Two percent of each stake made in Happy Days is injected into the progressive jackpot pool, the current size of which is indicated right above reels. To grab the jackpot, a player needs to enter the Record Picker Bonus and then hit the Progressive Jackpot symbol.