At last a comparable 'Scramble' game to that of Acornsoft's Rocket Raid. Moon Raider has some good colourful graphics, and is a smooth, fast, free-flowing game.
Unlike Rocket Raid, you can choose which section of the game to start on, and you can also choose the difficulty. A nice touch is added at the end with the inclusion of a smiling face.
Because the game is inexpensive and very good, I might be tempted to place this above Rocket Raid as the top Scramble game.