Magikoopa Security Force is a new take on the Tower Defense genre - instead of constructing towers to stop generic enemy units, one must strategically place Minions-Bowser's minions, that is-in a level to stop a decidedly nonuniform onslaught of Shy Guys. It is as much a game of Tower Defense as it is a game of action, as the Magikoopa you control is just as capable of defeating attackers as one's minions. Casting offensive spells and summoning aid requires time, and the determined Shy Guys don't give you any time between waves to relax. After clearing a stage, one is awarded coins and a rank, based on the amount of coins remaining from the mission.