So.
After getting a few acheivements in Castle Crashers, my friend and I noticed that he had 29985 Gamerscore.
We found a game with a simple 15G to unlock, (That one Terrorist 2 game that takes place in Vegas... The name escapes me.)
Five co-op sections later.
OldSkoolG4mer goes to sleep that night with 30000G.
"U jelly, brah?"