Metroid II - One of the many games seemingly affected by the disappearing sales bug from a few months back but it never got its sales restored. There are sales in the database, the totals just aren't showing up.
Metroid: Zero Mission - No sales data at all.
Metroid Prime Hunters - .66 mil with no Others sales.
Metroid Prime Hunters: First Hunt - Was a DS pack in at launch, pretty much confirmed to be a million seller.
Golden Sun: The Lost Age - Only has Japan data. The original Golden Sun got half of its totalsales from America.
Tag - "No trolling on my watch!"