-Endless recycling of characters and games without adding much new the last few years.
-No blood in Mortal Kombat for the SNES
-No backlight in the GameBoy Advance
-No CD for the N64 resulting in some games costing a small fortune and lost 3rd party support
-Not going HD with the Wii in 2006 (!)
-Not adding the second analog stick to the 3DS XL/LL
-Only marginally outperforming the PS360 seven years after the fact with the Wii U
-Friend Codes
-GameBoy Micro