It's time for the rats to show the cats who's boss. The Fat Cat has decided to eliminate all rats and mice around, and as a rat, your mission is to beat all the bad guys and punish the Fat Cat. On every level you'll meet your main enemies: cats, foxes, hedgehogs and traps, and in the end, you'll have a chance to beat the Fat Cat yourself.
Mad Rat is a 2-dimensional side scroller, where as stated above, you're a rat, and on a quest to defeat the Fat Cat and his minions. Using snowballs, icicles, and your athletic skills, you'll fight off and jump over enemies, all the while collecting cheese to replenish your health, and candy to boost your score.