Bug Blaster is one of the best games around for the BBC Micro. It is fast, colourful and fun to play. It is one of the most addictive games I have ever played (and the most addictive one that our editor has played!).
It is a very good version of the arcade game Centipede in which you are on patrol in a field full of mushrooms. Your aim is to avoid all of the creatures that roam around, and score as many points as possible.
There is a centipede which gradually makes its way down the screen, a spider which moves across the bottom of the screen, fleas which fall from top to bottom and a scorpion, which if it touches a mushroom poisons it. If a centipede hits a poisoned mushroom it heads straight down the screen towards you. This is another program which is excellent value for money.