Fantastic and original game. You can't really compare it with anything else, except in very broad terms. The instructions make it sound a bit "educational", but it's actually a great arcade game. Eat the amoeba, and catch the falling eggs, else they eventually hatch into nasties which are hard to escape from- and if you don't get the eggs when they're falling, you have to catch a falling worm to get the immunity to venture amongst the stinging thingies and... okay, it's a whole lot more fun than it sounds. Great stuff!