Systema Space Invaders Hand Held Electronic Game(Pre-owned). Delivered by royal mail 2nd class signed for. Here is a previously owned hand held electronic space invaders game by Systema from around the late 90's early 2000's. It has been stored away safely for quite a few years. It's a great colourful and easy shoot em up game to play and pass the time however be aware it can become very addictive. It requires 2 x AAA batteries (not supplied) Please feel free to ask any questions and please also take a look at my other items for sale.