Hi!
April Fool's Day is around the corner.
I heard that if you play GnG Red Stone and purchase Gate Globe or Portal Sphere on April Fool's day, you can get another one later.
Check the exact time below:
April 1st 00:00 - 24:00 (GMT) / March 31th 17:00 - April 1st 17:00 (PST)
Someone may find it hard to believe because April Fool's Day is about jokes.
But maybe what I tell is true.
It's up to you to believe it or not.
=D