4. Cho Aniki Zero
Publisher: Nippon Computer System Corp.
Sensing a recurring theme of homo-eroticism turning up in Japanese video games, Cho Aniki is about as PG-13 a game can get before they start charging you a Brazzers monthly subscription fee.
Originally launched in 1995, this side scrolling shooter has players collecting semen in order to defeat the evil Balzac. Spawning multiple sequels, the series has recently been reincarnated as a downloadable PSP title, Cho Aniki Zero. Some of the highlights from the press release include, "Cho Aniki Zero will be oiled up and ready to thrust its way onto your PSP" and "Collect enough Man Protein to unleash the devastating attack of the Men's Beam!" Gallons of man juice and number of eruptions can also be found in your inventory screen. Yeah, I guess it's not that subtle after all.