How to stop my game at particular keyframe

Hello Everybody,

I am a game developer. I have a problem which I use to face in every game development. So please help me anyone so that I can finish my game.

My problem is like this…

I have some about 50 keyframes in my game. What I need is whenever I get into the game it should show the last screen from where I got exit at the last time.

For Ex: I have entered the game now and exit the game from 25th keyframe. Now if I again start the game it should show the 25th frame only (instead of starting from the first frame) and it should get continue from the same from only.

I hope you have understood my problem and I am looking forward your reply…!

Advance thanks to you…