Timer starts when player gains control of Mario on World 1-1. Time ends when Mario breaks a brick. According to the instruction booklet, the citizens of the Mushroom Kingdom were trapped in brick blocks. When Mario obtains a mushroom he can break blocks. However, nothing comes out of the blocks. Subcategories: Pacifist (except for the block you break) 1-UP First (Obtain 1-UP before you murder someone.) TAS (it's a TAS)

Category Extension requests would be voiced on the Category Extension forum page Here --> https://www.speedrun.com/smbce/forum

However, they aren't accepting new categories - they already have 41, in addition to the main categories.