Estra is one of the new cheap range of games brought out by British Telecom. You have to collect the 24 pieces of the sacred statue of Estra, scattered around the edge of the screen and deposit them within the central force field.
Various nasties try to prevent your achieving this. Between each fragment of statue is a small blob which occasionally moves towards the central forcefield. Other creatures bounce around the edge of the screen, and a crab-like monster follows you everywhere. When your energy runs low an extra supply pack appears within a deadly floating forcefield, though the positioning of these can make it impossible to get the pack!
The game is fast moving and smooth and the plot well thought out. The sound effects are above average and pretty well all the colours are used to good effect. Although the aim seems easy, the screens quickly become very challenging as more monsters appear and the pace speeds up.
Instructions are only included on one side of the cassette, so if they are not required, the game can be loaded much quicker. I enjoyed playing this game and it is good value for money.