G2 1- G2 6, first group, (each number represents a thousand points). You get a "G2G badge" after obtaining 6, thousand points!! Then Mach 1- to Mach 9 next group, (each number now represents 10 thousand points) up to Pilot at 100,000 points. If you reach 1,000,000 plus you are aG2G Astronaut!!
The little G2G1 "title" in orange by your name changes as you obtain so many points to next level.