Wouldn't it be cool to try different drugs, without actually having them? It has quite a fair few drugs, like cocaine, heroin, alcohol or you can even take a french roast. It also has different feelings like it can make you happy. And it is all just a simulation -- you don't actually have illegal drugs. Infact, all it does is simulates some of the positive effects of the drugs, cocaine is basically just a stimulant, alcohol makes you walk funny and trip(i think they are magic mushrooms) just makes you hallucinate a bit. Best of all it is safe, fun, and isn't bad for you.
Don't worry, you aren't actually taking drugs. It's called I-doser, you can download it and it comes with a few free doses. It sends binaural beats which adjust the frequency of the brain to simulate the effect of the drug or the feeling. You just have to listen to the sounds, most of which go for about 30 minutes.
I have taken quite a few, you have to be in a dark distractionless quiet room, with stereo headphones. It does actually work. It is harder to do correctly than they say, but with a bit of practice at clearing the mind and focusing on the sounds, you can get it working quite well.
Just a bit of fun.
I may use the sleep dose to put me to sleep when i try polyphasic again, and I may use a stimulant to keep me awake. It is not actually drugs so it shouldn't negatively effect changing from monophasic to polyphasic but I guess I'll find out one day.