4.3.5 is a release file of the Minecraft mod Progressive Bosses for Forge, made for Minecraft 1.20.1. It was published on June 29, 2025 and is 1 MB in size. For the full description, screenshots and every other version, visit the Progressive Bosses mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
