Price Check on Game and Watch

I've got 3 Game and Watches that I dont really want so I'm wondering what they are worth for if I sell them

my 3 game and watches are Donkey Kong Jr. (Widescreen), Fire (Widescreen)and Mario Bros (Dual Screen) all three are in amazing condition as if they had never been removed from their boxes, the boxes are a little worn out/ beaten up though (but considering the games are older than me that isnt that bad) all 3 come with their instruction sheets

could anyone tell me how much i could sell these for (seperatly or as a set)

Look here:

http://videogames.shop.ebay.com.au/N...html?_catref=1

You should clean up pretty well. Especially if they still have their battery covers.