If the kit is missing items or the shulkers are trapped (e.g., shulker with TNT minecart inside), you have zero recourse. Server admins explicitly won’t intervene.
Sometimes, simply asking for help works. One 6b6t player notes, "if you need a kit, go to spawn with zero inventory—people usually give kits to beginners". However, this is 6b6t. For every helpful player, there are ten who will kill you, trap you in an obsidian box, or lure you to a lavacast. Never bring any valuable items with you when asking for a kit.
The best way to get a kit is to join a "dupe squad." Groups of 6b6t veterans coordinate to crash the server using lag machines, then dupe shulkers. In exchange for helping with materials (obsidian, pistons, slime blocks), they will give you a cut of the duped items. This requires high trust.
Everything about kits on 6b6t ultimately traces back to duplication glitches. Without dupes, the economy would be limited to what players can mine and craft, which is insufficient for the server's scale. Dupes allow players to create massive stashes of items, which are the raw material for all kits.
This comprehensive guide breaks down everything you need to know about 6b6t kits, from the essential items every kit must contain to how you can safely acquire them. What is a 6b6t Kit?