Grunty Industries is the sixth level in Banjo-Tooie and it is one of hardest. I personally LOVE THIS LEVEL SO MUCH, that I brought it to Minecraft! I only built the outside portion of the level to match exactly how it was in the game! The interior of the level however, is actually Weldar's room, the boss of Grunty Industries. I thought it would be better to pay tribute to Weldar by incorporating his room as the interior of the factory rather than build EVERY single floor since it is one of the most complex levels in the game. I hope you all have fun with this splendid world! :D