Play Mariachi Mayhem slot completely for free, without spending any money. Demo play for fun, no download or registration required. Read the full game review. Return to player, or RTP, of the Mariachi Mayhem slot machine is %, and if you ask us, it is. The game's features include free spins & respins, the scatters. Get your feet moving to the beat, and grab yourself a Mexican. 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. . 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. Try out our free-to-play demo of Mariachi Mayhem online slot with no download and no registration required. %. It is accompanied by fun music and sound effects, and the graphics. Game Type. This online slot game is a classic, featuring a mariachi band as its theme. Watch out for the and Mariachi. Try Mariachi Mayhem slot online for free in demo mode with no download or no registration required. Play Mariachi Mayhem with wild reels, colossal symbols, with spins and respins galore. 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. Mariachi Mayhem is a 5-reel, line online slot game with bonus round, bonus spins, instant play, autoplay, video slots, wild symbol, re-spin.