Played on PC.
Boss: Werner Werman
Weapon loadout: Peashooter, Spread
Charm: Whetstone
The Cuphead Souped Up mod is an incredibly difficult Cuphead mod that gives bosses some new attack patterns, makes them faster, and gives them way more health. There's also a stat rebalance of the weapons in the game to nerf some of the most powerful weapons and buff some of the under utilized weapons to allow more versatility in weapon choice for each boss.
Werner Werman was an extremely difficult boss to conquer and took me several hours before I got a run good enough to close out. Surprisingly, we finished the fight without getting hit as well! Whetstone seemed like an important charm to allow you to squeeze in extra damage whenever you have a good opportunity, and also significantly shortens final phase due to all the added parry damage. Peashooter seemed like a solid choice due to its versatility in 1st and 2nd phase, and Spread is a must have for the close range portions of the fight. This was my final ground level boss to complete in this mod.
The mod can be downloaded here: bit.ly/cup_mod -- Watch live at / jason2890