Portopia Renzoku Satsujin Jiken (Japan) [En by DvD Rev A] (~Portopia - Serial Murder Case, The) is a ROM hack that provides an English translation of the Japanese NES adventure game. 'En by DvD Rev A' refers to the English translation patch created by DvD, suggesting a community effort to make the game accessible to a wider audience.  This shows a different development model to original games, but demonstrates how they can be adapted.

Portopia Renzoku Satsujin Jiken (Japan) [En by DvD Rev A] (~Portopia - Serial Murder Case, The)

Popeye no Eigo Asobi (Japan) [En by KingMike v1.0] (~Popeye Lingo Game)