Yeah, Nintendo definitely deserves criticism on this now. If the Game Gear's link feature can be emulated, there's no excuse for GB games to get the same treatment. From this point forward, all future GB releases to the VC that originally featured multi-player link support ought to have it enabled. I certainly don't expect download play like with Ice Climber, since unlike the NES, GB and GG always required two copies in the first place, but there's no excuse not to support multi-copy multiplayer any more.