Probably just the game being incomplete atm.
You have to press certain other positions to get the others working.
> Download Joiplay
> Install its Ren'py plug-in
> Download the game
> Extract its .Rar file
> Open Joiplay - Click the "+" button then "Add game"
> Go inside the extracted file folder and find the .Exe file and click it -- then click "Choose"
Voila~ you can now play on Android.
