Spinal Tap slot with 5 reels and 243 paylines and is powered by Blueprint Gaming slots software. Spinal Tap slot is a Video slot which is one of 4 slots listed on Slotsroom. This slot hasn’t been rated yet but any players, why not be the first to rate it! This slot has an RTP value of 96.92% and conversely a house edge of (100-96.92)%. This slot is a type of slot. This slot has a minimum bet size of 0.3 and a maximum bet size of 30 .