It seems impossible to physically travel to the game world. After all, the fundamental structures of the two worlds are completely different, and even the physical laws are not quite the same. (How could monsters respawn so quickly in the real world?)
Tina, Alyssa, and Cat Morning Star were able to come to Blue Star, but it was only their consciousness that arrived.
In other words, the real Blue Star is like a game world to the game world—it's a game world's game world.
The two worlds cannot communicate; it's almost impossible to physically cross over to avoid disaster, at least with any known method.
Sky Dragon rolled his eyes and said, "Could this be destiny's arrangement?"
"What destiny's arrangement?"
"It's destiny's arrangement!" Sky Dragon winked at Su Yu. "Your life is about to end, and at the final stage of your life, destiny arranges for you to see Tina, Alyssa, and Morning Star one last time."