DB2 works well on a lot of bot functions, and interface layout, but on actuall functionality (E.g. IM and changing arena) its fatally flawed. It also suffers on the problem that its very 1 dimensional to identifying stuff outside of you, you have eyes, you can see nothing, a shape (of which you can do nothing to react to) or see an edible thing, and its eyes. Mhm, this is the major limiting factor, no nutrient fluxs, no smell, no sound (Though sound is less nessisary than smell/nutrition) and food then in turn, along with anything else is forced down that thin corridor of options.