No, they're not random letters, they're the two new games I got today (at around 3 to be exact)! I just got Pokemon Ranger: Guardian Signs and Sonic Riders: Zero Gravity for $50 bucks at Best Buy! (PR:GS was $30, and SR:ZG for Wii was $20).

Anyway, I've pretty much been playing Sonic Riders Zero Gravity since then, and I've already beaten the Heroes story. That game is FUN!