There are some games which are simple but challenging. Others are simple and addictive. Egbert is just plain simple.
The screen divides into three columns. Aliens of various shapes rush up and down the two outside lanes, making it very difficult for poor Egbert (that's you) to leave the middle lane without getting eaten alive. The idea of the game is to cross the fast lanes and make contact with little red buttons as they appear on the sides of the screen.
There is one complication. Egbert is holding an egg which he is not allowed to take with him on his travels.
He therefore has to climb to the top of the screen, release the egg and then return to the centre lane in time to catch the egg before it hits the floor.