Yes it is. It is developed with my hands.. Sometimes my two hands, often one.
Yeah, there's a message when you reach the end of the content with a character. You can also look at the completions (quickly), but this system is not yet very reliable, and sometimes it even misleads. I'm working on it.
I don't understand, there is an offline version where the images are accessible.
Yes, for the moment I'm focusing on game systems, gameplay, IU, with some content that allows me to illustrate all this work and get your feedback. We are nearing the end of this step and the addition of content should be more important in a few weeks.