If you ever wanted to make your own campaign set in the Mushroom Kingdom but having trouble finding good homebrew this supplement is a great headstart into making more Mario esque content. I not only managed to make homebrew for several races using a pdf of this I bought for reference but I also managed to make a couple new magic items referencing power ups of the source material of the more modern games. Though do not do what I did and put a horde of "Evil Fungi" with a Flying Fungi as the leader and a bunch of Windup-Bombs against six level 4 adventurers and expect it to be balanced especially cause none of them got that you had to toss them to other enemies. Hope to see more from them in the future and perhaps even a "16-bit" or even "64-bit" adventures one day.