This is not a usual slot game, with basic cards and symbol because the main core of the game is fun. This slot is similar to Yahtzee. It has a retro look, with gramophones, disco balls, crazy lamps, cakes, bowls of nachos and other fun features. Free online Jackpot Block Party slot machine, made by WMS games developers, with a theme of entertainment and partying, is a video slot with 5 reels and 30 active pay lines.