Bug squishing is the aim of this game which owes a lot to Pengo for its ideas. You are a blue cross in the middle of a maze of green discs criss-crossed by some immovable black blocks.

You must push the discs around to try and crush the purple bugs that appear at the edges of the screen. There is no limit to the number of green discs you can push about but trapping the pests is no easy matter.

The hugs can also move the discs but cannot crush you. Your demise is brought about by the arrows, or bug stings, that the mauve monsters throw at you. These also destroy the surrounding greenery which makes hiding harder.

Movement is jerky and the characters cannot go diagonally, but the action is fast. It's difficult to keep track of the bugs since their colour doesn't stand out.

As you progress to more of the 20 screens, the number of six-legged beasties increases - and on some they are invisible and have to be spotted by their disc moving.

Like Palace's other offering this month, the game looks unimpressive at first but it will grow on you. The key is to get to grips with the tactics rather than go on an orgy of random squishing.