Gold's Gym Cardio Boxing is a good one, Walk it Out is another, and Outdoor Adventure. For Walk It Out and Outdoor Adventure you would need the floor mat thingy.
Cardio Boxing takes some patience to "unlock" the different levels, but once you do you can get a decent workout.
Walkit Out, my husband cannot stand the music, but you can unlock tons of different songs as you go along and evenutually choose your type of music (rock, country, pop). I don't mind the beginner music, just keep walking to the beat and trying to "build" my island. I easily walk for 45 minutes or more each time I use it.
Outdoor Adventure, lots of running and jumping. I like to pull this one out when the grandkids come over so we can compete in the foot races, log jump, or trampoline, etc.....