In the regular field maps, you will be able to fight Monster Robots that have evolved corresponding to the enviroment of the planets they're on. There are also objects that can be destroyed as well as various obstacles that the player must face. In rare cases, there will be a special battle event called "Emergency Mission".

There is Demon Force Base at the backwoods of each planet. You must vanquish the hidden Boss, otherwise here will never be peach in the planet. Also, you will need to raise your Rank to move on to the next planet. In order to conquer the Demon Force Base, you need to unlock the passage by collecting the LinkScore.