I just finished playing the second of what I've recently downloaded and discovered are teaser games. They allow you to play so far and then they ask you to buy the full game to play any further. That's despicable. They come free like regular free games, but they're not. Their teaser games, and they ought to be marked as such.
There should be a separate category or a required label on these that says 'sample game' so you know what you're getting.
