Cuphead DLC 300% Speedrun

Played on PC.
This run beats the former World Record by 35 seconds and finally breaks the 1:03:xx barrier! The run is finally starting to look somewhat optimized! We had an incredible late game with several amazing fights, though we ended up with a pretty sub-par Devil fight with plenty of room for improvement. Grim Matchstick and Rugged Ridge both also had a handful of mistakes, plus we lost ~10 seconds early on in King's Leap. A 1:02:xx time is finally starting to look possible for this category, so maybe that will be my next major project in this game...
Some commonly asked questions:
Q: How are you able to play on Expert without beating the game first?
A: Speedrunners use something called the "Fresh Expert" glitch for Expert mode categories. Basically, if you have a save file where you've already beaten the game, you access that first and select a boss. On the difficulty select, you put the cursor over "Expert" (no need to actually fight the boss), and then back out and Exit to Title. When you start a new file you will begin the game on Expert.
Q: Why do you fight all of the King Dice minibosses?
A: While they technically don't contribute to file percentage, we decided in the speedrunning community to include them in the 300% category since it fills out the Checklist in the menu. That's also the same reason we require buying all the weapons/charms despite them not contributing to file percentage either; it's just nice looking from a completionist perspective!
Q: Where can I find the leaderboards for this game/category?
A: www.speedrun.com/cuphead for the main game leaderboards. For this category specifically you can find the times www.speedrun.com/cuphead#DLC_ and then select 300%
Q: How do I join the Cuphead speedrunning community?
A: Join the Cuphead speedrunning discord here! / discord
Also, feel free to subscribe to me on KZhead and follow me on Twitch if you enjoy this content and want to see more! / jason2890