Arcade Paradise

Each game has at least three goals to complete in your pda. So you will need to buy a few more games before you even have enough goals available. Although some require varying levels of skill, there are plenty that are cumulative. I would just try out each new game you get, then focus on the goals for a game you think you can do in your spare time. If and when you run out of achievable goals for you, then wait until you buy a new game and hopefully it has goals you can accomplish.