Super Mario Brothers Bros 3 NES Nintendo Cartridge & Sleeve Tested & Working
Game has been disassembled, cleaned and tested. To test we put the cartridge in an NES with a new 72 pin connector and power on. If the game loads the NES is powered off, cartridge removed, reinserted and powered on again 3 times total. Upon 3 consective loads the game is considered passed and working.