In console games, they use the term "out of the box experience" to describe that first twenty minutes of playing a game. TankBall's updates include improvements to physics and frame rate, timed five minute multiplayer games with team and individual top scores and a health bar.

You can even adopt a pet! World Of Padman.

There's always the possibility that the new feature you're working on could exponentially increase the amount of gameplay. Realtime - A player's actions take effect immediately.