The 3:51 cart% run uses an inventory duping glitch instead of rubbing items against the pawn shop shredder. How does that glitch work? I've looked for tutorials for it but I can't find any.

Edit: After playing around with it, it seems to be something with dropping an item with left click, and mashing Tab and F to cause it you to pick up the item twice before the inventory menu can finish coming up. I don't know exactly when is the right time to press the keys, but mashing it and quickly hearing the item pick up sound twice means the dupe worked.

Edit 2: The order to press the buttons is Left Click, Tab+F, F in quick succession. Left click will drop the item from your inventory, Tab will start closing the menu and F will pick up the dropped item, pressing F again quickly will pick it up again while it is moving towards you.

I'm trying to get autosplitter working for different categories I want to run, but I can't get it to start itself. I'm running on the newest version of the game. Does the autosplitter work with this version? I've checked different combinations of settings in the autosplitter settings tree, but I haven't gotten any to work. Any ideas what I need to do?

There's even a variation of hyper dashing where you jump after dashing into the ground, and you carry the momentum while having another dash in the air. It's like an extended hyper dash. I stopped progressing in the game and started messing around with it in levels to see where it can be used.