1. The kick ass chemical in your brain that makes you feel and do happy things... whatever they may be.
2. Also an awesome song that's the opening theme to Gantz.
1. Dopamine creates happiness. We're not exactly sure why or how, but it does...so, enjoy.
2. (Words to the song) Kimi wa (DO-DO-DO-DOPAMINE!) doko yara? sagashi ni kite,?AWHEREVER YOU ARE
soshite FLY AWAY (A ARARARA A A YEAH!)