Hentai Express: Lust Train

Original title: 淫欲特急ゼツリンオー

Our pleasure is your defeat... You may be a genius scientist, but you cannot contend with our powers at their highest. The more I am aroused the stronger I get! You will not hurt our city. Do not try to trick us with your harem of women and tentacle sex machines. The robots are trained and will defeat you! Zetsarin Oh, Engage!