Used Nintendo Game & Watch MARIO BROS. Multi Screen concole, working-h0518-

This is a vintage Nintendo Game & Watch handheld. 

The unit powers on, and the game is playable. 

However, the polarizing film on the LCD has not been replaced, so the screen is not visible when viewed directly from the front.
You can see the screen only from a specific angle, such as from below. 

This is a common issue with old Game & Watch units whose polarizer has deteriorated over time.

Please understand this condition before purchasing.