IGN Japan had the opportunity to interview the team behind Action/Pixel Game Maker MV during their livestream of BitSummit. The interview is all in Japanese, but it shows off a solid amount of gameplay and development footage from the Action/Pixel Game Maker Engine (which looks decent). From what was shown, the the development UI looks a bit convoluted, but it's also seems pretty versatile as well. Also, the the animation shown in their game demo seemed pretty fluid (beyond my expectations). You can check out the direct footage of Action/Pixel Game Maker MV within the IGN Japan livestream below
https://youtu.be/LS-eywgxNnw
(the Action Game Maker MV Interview starts
around the 50 minute mark)
Also, if anyone fluent in Japanese here could translate some of the highlights within the interview, that would be awesome.