What is this thing sitting in slot 2 of my new DS lite?

What is this thing sitting in slot 2 of my new DS lite? nintendo ds slot 2 Crown Entei distributed in JP via Slot 2 Red cart is for Entei, Blue cart is for Suicune, Yellow cart for Raikou Image found by @Nigoli, nintendo switch game card slot The cartridge may stick out about two or three centimeters, this is normal, and a byproduct of Nintendo shrinking the slot on Lite consoles to

nintendo switch game card slot 2 slot standard I had no idea about the Nintendo DS Hacks, Nintendo Game Boy Hacks, Nintendo Hacks

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