I have had these for quite a while. 3DS system: It turns on, but sometimes ghost touch occurs. DS Lite (2 units): The FF version sometimes doesn't recognize the cartridge. DSi: It worked normally. Regarding the DS systems, I only performed basic operational checks... Some parts might not work. DS software: Tetris Meteos Hyper Sports 510-in-1 (foreign version) These are old items, so I will consider them as junk. I checked the power and did some basic operational checks, but not everything. I do not offer any warranty. These are considered junk items.