*Wave 5 & 6 figures were initially released for a short time on red cards. Within weeks they were replaced by green cards with the new holofoil sticker design. *Source: Star Wars: The Action Figure Archive
*R5-D4 originally came with a yellow straight-latch firing button on the bottom of the body. This was replaced with an L-shaped button, which prevented the button from being pushed too far into the body. *Source: RebelScum.com