When you start the game you find yourself on a field sprinkled with crystals and other goodies. Your job is to collect all the crystals while avoiding the mines – not to mention the 12 breeds of nasties and their bullets that soon turn up to try and stop you. Once you collect all the crystals, an exit at the bottom of the screen opens up so you can escape. Sounds simple? All the best games are – the depth of gameplay emerges from the simplest of