Bully
H25 - Hydrogen Sulphide
Dr Dark
(CH3)3N - Trimethylamine
Envy
HCHO - Formaldehyde
Grumpy
SO2 - Sulphur Dioxide
Guilty
CH3CHO - Acetaldehyde
Psycho
(CH3)2S - Dimethyl Sulphide
Rudy
NO2 - Nitrogen dioxide
Selfish
(CH3)2S2 - Methyl Disulphide
Spoilt
NH3 - Ammonia
Thief
CH3SH - Methyl Mercaptan
The Stinkers live in a ball of Stench. Their population grew too big and this created combinations of toxic gases that even the stinkers could no longer tolerate.