𝗻𝗼𝘁𝗲 𝗯𝗲𝗳𝗼𝗿𝗲 𝗿𝗲𝗮𝗱𝗶𝗻𝗴: there may be better ways/tips to speedrun that I'm listing, but these tips are still pretty good, and effective in speedrun's and i suggest using them

1. 𝘀𝗽𝗲𝗲𝗱 (𝘄𝗮𝗹𝗸 𝘀𝗽𝗲𝗲𝗱) • healing gives you speed, i have only confirmed this with radioactive health pack • power up's • when ever you finish a room • hustle perk (for guns)

2. 𝘄𝗲𝗮𝗽𝗼𝗻𝘀 • use high damage weapons for bosses • use automatic guns for missions (just an opinion)

3. 𝗲𝘅𝘁𝗿𝗮 • if you ever get a room with no zombies, but a red door just end the run there this is what I personally call a "mini arena" cause what happens is that the game spawns zombies one at a time, and depending on the mode it usually takes 20+ seconds • you can abuse the lasso zombies, you can let them pull you, and then you skip a lot of walking, and if they damage you, you can just heal which gives you a walk speed bonus • on retro city, if you look backwards and up before going to the boss, it will make you look at him once the animation is done (and really on any boss tbh) • on wild wild west, you can shoot through the barrier (the one that separates the different parts of the mission)

and that's all the tips I know, glhf on your speedrun's -wickddd