Forgoes the use of Permanent Invincibility Glitch. This is defined as triggering Princess Peach's dialogue after Koopa Castle, the final level. Now, I have taken the optimization to a level above what humans are capable of replicating. The ten levels test a player's skill and reaction time to the limit, and the simplicity of the physics has led to some extremely optimized records. Within the speedrun community, the game is also famous for its brutally hard single-player built in levels. When it was released, Super Mario Maker did not yet exist, so this was the best way to create and share Mario levels.
Super Mario Flash is a flash game popular for its level editor. Version: 3.0 (The 2.0 and other versions lack certain levels, 3.0 is the final version of the game ever released)