Untextured Blender Cube 64
nyar/fangz's first romhack, in which Mario is trapped in a hell world of untextured blender cubes and MOP blocks and must get The Eight Red Coins and a star. This hack is intended to be somewhat challenging, having some possibly interesting strats relating to the note blocks which feature prevalently. See the Super Walkthrough video if you can't figure out how to pass one of the obstacles.
Things to note:
-This hack is very short, and with savestates it can be beaten within only a few minutes. Completing the hack without savestates is the officially designated Pro Gamer Move which could be a fun thing, but:
-Completing the hack without savestates is made a lot harder by the fact that the sand blocks do not regenerate, and the level does not reset upon falling. Don't fall, I guess. Pretend it was a Funny CBT Desert Bus Trick or something.