If you don't cheat, you'll feel the effects.
I like the Eye Toy and think it's a fun accessory for the PS2. It introduces unique gaming experiences, and a new way to play in the home. Unfortunately there weren't many titles released for the device. Fortunately Kinetic was released and help show how the PS2 could've been more than just a gaming system.
Kinetic is like an interactive workout video, and is meant to improve your overall fitness level.
Kinetic gives you the option to choose one of 2 personal trainers to get you fit. You enter your height, weight, age, and other vitals, and Kinetic puts you on an 12 week training program. You start off exercising 3 times a week, about 40 to 60 minutes a session including warm ups and cool downs. Each session you perform 2-3 types of exercises.
These exercises range from high energy cardio work outs to slow going thai chi work outs. You also have the option at the end to add exercises that target specific muscle groups.
As you progress through your training program you begin to add more activities to your work out routines, and more routines each week.
I had to stop after 7 weeks, because the frequency of the work outs was too much. Three days a week, no problem. We were going on to 5 days a week, and 4 was tough to work in my schedule.
Even after week 7 though I could feel a difference. I was sleeping better, had more energy, and just generally felt better. Luckily if the personal trainer mode doesn't work for you, you can build your own routine with the types and amount of exercises you'd like to do.
Although there's not a lot of different styles of exercises to choose from, there is a good library of the exercises themselves which helps keep things from getting repetitive. My favourites are the cardio work outs that require a lot of punching and kicking.
The trainers are very helpful and provide good instruction and tips to ensure you're doing the exercises correctly, and getting the most out of them.
The biggest downside is the music. I usually had it turned off as the selection was quite limiting.
It's not going to get you buns of steel or rock hard abs. Of course this is not what it promises. However if you follow the instructions, and keep at it, you will feel the difference.
Just make sure you're well lit, so the eye toy camera will pick you up.