A crossover with 1/2 Prince would first need to take place in the future... people in 1/2 Prince live a long time though, so it doesn't necessarily have to be set in the present present? But having characters from other series appear in Second Life would be a bit harder if they weren't already part of this futuristic world. Hm, maybe Hunter x Hunter would be an easy one to cross over since there's the whole Greed Island arc (also a virtual game). Pffft, now I've gotten hit by a plunny, hahaha (not a crossover with HxH but just a general crossover premise), but it's not something I can write yet until we get more chapters translated. XDDDD

Pulling them out of a coma sure sounds like .hack. =P

He wouldn't be the Sun from LSK, no. XDD But it could work...