Erotic games are not mainstream in Japan. They are incredibly niche. But that hasn't stopped them from innovating, all in the name of weenie masturbation.
Note: This article contains content some readers might find objectionable.
In the past few years, erotic game companies have developed and/or released a slew of highly interactive peripherals (here, here, and, uh, here). The latest is from Tokyo-based adult game maker Waffle.
Currently in development, the electric-powered fleshlight-like peripheral moves in concert with the in-game action, which is something we've seen before. (These products are even more niche than erotic games.)
I guess the big innovation is that the hands-free peripheral can be moved to a variety of angles (as you can see in the GIF below) and has a suction cup, allowing people to stick it anywhere.
By it, I'm referring to the peripheral. Swear.
映像と連動する電動オナホを開発中！ [Waffle NSFW]
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