Original Gray Nintendo Gameboy with Travel Bag and Games

Original Gray Nintendo Gameboy Comes with Donkey Kong Land 2 and Tetris Also comes with travel bag and 4 extra clear plastic game cartridges Several instruction booklets and more from the 90s included Uses batteries, not included Screen needs to be cleaned. Has not been touched since the late 90s/early 2000s. I don’t want to do much with it because I don’t want to accidentally ruin it