Still a placeholder! People have seemed to show interest, so I'll get to work on that - the reason it's been put off is because I'll need to animate each character and rework them a bit.
I'm going to try and hotfix that movement bug soon, but in the mean time, I think the WASD keys still work even when the arrow keys stop working. Let me know if that is not the case though.
Also, not really sure why it does that 'install' every time. There is currently no save data functionality implemented. I'm fairly confident it's an aspect of the game engine I use, but I'm not sure I can modify it. I'll see about looking into it later on.