The remaster, which is called Spy Bros: Pipi & Bibi DX, was announced last year and will be available on both Nintendo Switch and PC (via Steam). Once again, it sees you controlling the two spies named Pipi and Bibi as they plant bombs in six buildings "protected by guards, scientists, divers, mob bosses, humanoid cats and other wacky individuals..." and try to escape before the timer runs out. Though, interestingly, according to its developers, it will remove all of the erotic elements present in the original in order to try and help the game "reach a wider audience".
That means, instead of being greeted with a naked woman at the end of each level, as you would be in the original arcade release, you will instead be introduced to a bonus level instead. In response to questions about this decision, Rawrlab Games calmly reminded players they can still play the original on other platforms like iircade if they wish, or you know, visit sites for that kind of thing.
Here's some more info from Rawrlab Games:
This remaster is being directed by Pablo Navarro, CEO and programmer at RAWRLAB Games. It will include many improvements over the original game to make it more fun for fans of the original who want to relive their memories, and for those looking to try out this classic game first-hand.
Pipi & Bibi’s (also known as Whoopee in Japan) is an arcade video game developed and published by TOAPLAN in 1991. This game did not reach the fame of other TOAPLAN creations (such as Truxton, Zero Wing, or Snow Bros.), probably because of its erotic motifs, which caused many arcades to refuse to buy and exhibit this game in their shops.
Spy Bros.: Pipi & Bibi’s DXis a single-screen action-platforming game reminiscent of Snow Bros. and others of that time, where the players assume the role of Pipi and Bibi: two spies entering and bombing a series of six buildings protected by guards, scientists, divers, mob bosses, humanoid cats and other wacky individuals… and leaving the buildings just in time before they collapse from the explosions!
Unlike other recent re-releases of video games, this remaster does not include HD graphics, sound, or music enhancements. Instead, it aims to delight the retro gaming community with aesthetics and game mechanics faithful to the original video game, albeit with some improvements in game design and extra content.
Some of the extra content mentioned above includes retro graphic options (pixel-art or AI upscaled graphics, CRT filter, etc...), six different bezels, and "a new way to replay the game with fast-paced action gameplay" as Spy Sis.