Just to clear up a few things in regards to mBot / Biobot / Etc.
Those bots were created from UDO's source code, which tvirus released to the public, which means DarkOrbit / Bigpoint also have access to read the code. hence, they know exactly how the bots work.
Knowing how the bots work, means they can write new anti-bot scripts which are tailored primary to catch UDO-Based bots. That being said; mBot / Biobot and other UDO-Based bots are very unsafe in general.
As for why you would want NPC-Killer is beyond me; botting to get rid of the boring part of the game such as boxing is understandable, but if you're playing a game, you should /play/ some aspect of it. (Lol)
My advice - Spend £15 and buy kBot, been running it on multiply accounts for 7 months now, not one account banned,
regards
Tw