I'm fairly sure that Tetris number includes digital Downloads. The majority of the numbers we have don't, so thus the numbers become impossible to compare with the rest of our numbers.
The GTA numbers are from 2008, before the launch of GTA IV. They're ridiculously outdated. GTA has shipped somewhere around 20 million more copies since then.
The Sonic numbers link to an unofficial site, and not to any specific URL. There's no date on how old it is, and no way to know if the numbers were ever correct.
The numbers are also shipped, rather than sold, which causes a tad of an issue comparing it to this site.
You definitely do have a point with Need for Speed and The Sims, though.







