The Hydronauts
Neptuna
Ponto
Balty
Octavia
Obo
Neptuna (English version)
Balty (English version)
Ponto (English version)
Obo (English version)
Octavia (English version)
Neptuna (Finnish version)
Ponto (Finnish version)
Balty (Finnish version)
Octavia (Finnish version)
Obo (Finnish version)
Neptuna (French version)
Ponto (French version)
Balty (French version)
Obo (French version)
