ViscerArms, or Oh No! My Everyday Life in High School Will Never Be The Same, Now That I Can Turn Into a Big Meat Robot!

In a small 90s town in the middle of nowhere, USA, only one Scooby Gang of teens can save the world from an alien threat, by transforming their bodies into horrific towering flesh creatures! Equal parts sentai, magical girl, and Degrassi in influence, ViscerArms is a mid-weight narrative RPG system about 90s nostalgia and school antics. Fight giant monsters, steal the test answers, and make it home for dinner!

All you need is some d4s, a willing GM, and a fun concept for a magical meat mech. Also, the OST to Tony Hawk Pro Skater, if you can get it.