Over all, it wasn't a bad game. Constructive criticism, could be given.
1. Being able to read what the buttons do would be nice. And maybe seeing how much it costs as well.
2. Perhaps some background?
3. More buttons might be useful.
4. Its a little confusing to have a big green button in the middle of the screen. Maybe add instructions or mention it isnt usable?
Hope this helped! Remember, not being rude dude, Good luck!