This is in alpha (version 1) right now, the reason I'm making this mod is the only 2 Super Mario in Minecraft mod are pretty bad. I'm not posting crafting recipes yet so just use Just Enough Items https://www.curseforge.com/minecraft/mc-mods/jei I added ground blocks from Super Mario Bros and Super Mario World, and added a Super Mushroom that heals 4 hearts and a 1-Up Mushroom which fully heals you.
Version 1: Added Super Mario Bros ground and Super Mario World Ground, Super Mushrooms and 1-Ups Mushrooms.
Version 2 Not Released: Updated Super Mario Bros and Super Mario World ground textures, Fixed Mushrooms healing 8 hearts instead of 4, Put 1-Up Mushrooms into correct creative tab. More to be added