This blog post presents an advanced tool-assisted speedrun (TAS) of the NES game Lode Runner, showcasing significant optimizations and new techniques for gameplay efficiency. The author details a newly discovered "select skip" method that accelerates level transitions and discusses the complex interactions between game mechanics such as enemy spawning and timing. To manage these complexities, the author developed a scripting framework to facilitate precise input and optimize strategies across all levels, resulting in a substantial overall time improvement in the speedrun.