How I Use It
I have used Manga High as a student-choice option during computer time AND as assigned lessons aligned with the curriculum. As the student-choice option, students can do whatever game they wish and either play against their friends or against other players around the world. As assigned lessons, students do the activity I assign to them at their own pace.
What works best for me is the assigned lessons because I have a little more control and can provide more guidance as opposed to students playing the same two games all year. I make sure that they get points in the class for completing assignments. Otherwise, they won't do the activities that are not game based.
I've had the most success with my low achieving and lower ability students in building basic skills and fluency. My higher ability students like the competition aspect and are always trying to beat my score (I've had a couple come close).
You can, using your teacher account, take lessons to do as a class or in small groups using a SmartBoard. You could also play the games the same way, perhaps as a class incentive.
I like Manga High best as assigned lessons aligned with the curriculum. This options allows for students to work individually at their own pace while still being able to do the fun, competitive games that help them build their skills. It also allows me to gage their mastery and suggest additional topics for them to work on if they are struggling or need additional help. I wish the free version had a little more access to the analytics, but it is still an awesome resource that students love and love learning from.