When you first start
Exerbeat, it prompts you to create save data, and then you choose a Mii to play as. Rhythm is an orange 1/8th note who walks you through the game. He is your guide. First thing, you will enter your birthdate, weight, and dominate hand. I wish it would let you use the balance board to input weight and even to update your weight daily, but since you don't use the balance board very much, I guess it makes sense to just input weight. You can change these settings in your calendar.
There are quite a few options on the Main Menu. The Pink Heart on Main Menu is the target heart rate calculator. It will help you decide your target heart rate based on what level of intensity workout you want. The globe on the bottom is Around the World. This is an interesting little place as it takes you around the world based on how much you have exercised and how many rhythm points you've earned. You start off in England. The next stop is Athens, Greece, but you've got to get there. You'll stop at several points along the way, starting with France. It took me two exercises to get to France, so it shouldn't take you long either. For each place you stop, you will get a bit of history or facts about the area. There is also a personal trainer on the top of the screen. There, she will create a custom workout for you based on your likes. Then there are five workout selections on the Main Menu: Dance Exercise, Martial Arts, Body Conditioning, Party Fitness, and My Exercises. Dance Exercise has Aerobics, Hip Hop, and Latin Dance. Of these, I think I personally like the Latin Dance the best. You'll notice that not all the exercises are unlocked when you go in. You'll have to play through some of them to unlock more. Martial Arts has Boxercising, Karate, and Karate Forms. Body Conditioning has Yoga Pilates and Stretching. Party Fitness has five games that will keep you entertained while still burning calories. My Exercises will let you put together any exercise that you have unlocked into your own custom routine.
The calendar screen is also a wealth of information. A graph on the calendar screen will show you rhythm points, calories burned, and time exercised. There is also a Weekly Challenge under your calendar. You can use it to set goals for yourself on how much you want to do each week. Don't forget that you can also change your settings under the calendar screen as well.