Demo play for fun, no download or registration required. It is accompanied by fun music and sound effects, and the graphics. The Games Company's Mariachi Mayhem slot has 20 paylines with a giant symbols and a mariachi band that randomly appears along with free spins and re-spins. Play Mariachi Mayhem slot completely for free, without spending any money. Mariachi Mayhem by The Games Company Free Play ⚡ Full review of this 5 reels & 20 lines slot ⚡ Including Big Win Video and where to play. %. Try out our free-to-play demo of Mariachi Mayhem online slot with no download and no registration required. This online slot game is a classic, featuring a mariachi band as its theme. . Read the full game review. The game's features include free spins & respins, the scatters. Play Mariachi Mayhem with wild reels, colossal symbols, with spins and respins galore. Mariachi Mayhem is a 5-reel, line online slot game with bonus round, bonus spins, instant play, autoplay, video slots, wild symbol, re-spin. Try Mariachi Mayhem slot online for free in demo mode with no download or no registration required. Return to player. This fast paced, 5x3 reel slot from The Games Company is a lot of fun to play with its bright 3D graphics and colossal symbols. Game Type. Return to player, or RTP, of the Mariachi Mayhem slot machine is %, and if you ask us, it is. Watch out for the and Mariachi. Get your feet moving to the beat, and grab yourself a Mexican.