Super Mario Bros. 3: "7-1 Warp" faster route [Low Optimized TAS]

From a channel Lumen includes in full: 100th Coin dissects the actual code of Super Mario Bros. and SMB3 — level generation, glitch mechanics, arbitrary code execution and tool-assisted speedrun tricks — explaining 6502 memory and logic behind each with rigorous, verifiable detail.

A 4-minute video from 100th Coin's catalogue; the title names its topic.

Video by 100th Coin, played through YouTube's embedded player.