OSRS Bounty Hunter Kill other players and receive emblems which can be upgraded and sold to retrieve rewards. Iron Man & Ultimate Iron Man Participate in one of the hardest challenges we offer. These modes restrict trading, player killing, buying items from shops and much more. We offer a High Score system for all modes so you can compete with other modes, or just a single mode! Zulrah Zulrah has been designed similarly to how it was when it was initially released on OSRS. Compete against other players for completing zulrah with the best time, or simply go for the amazing drops.