Looking for some Dynamic Games

[him over there]

Hey everyone, I was wondering if you all could recommend some dynamic games to me. I suppose most of you know what I mean but in case you don't I mean cheap or bitesize games that I could beat in a few hours, maybe a weekend. I'm asking because they obviously don't get much of a spotlight and I find that these are the games I come back to most.

If you want to know the kind of games I already have like this are:
Megaman 9/10
Outlands
Pixel Junk Shooter
Castle crashers
Shadow of the Colossus (okay a little longer but I can just pick up and play.)

Also I own a PS3 so please make sure that if you recommend a game that it is either on the PSN or available for Playstation.

I would also like to say that I would like games with real endings and progression, hence "bitesized game." I am not looking for never changing highscore based pick up and play games tetris or some of the games on iOS like fruit ninja.

Thank you in advance everyone.

 

[RipRoaringWaterfowl]

The Stanley Parable, a mod for Half Life 2 you can download from Desura, if your willing to have an account with them (it's all free!).

The mod doesn't even need you to have Half Life 2 installed, just a basic Source base that is downloaded along with the mod. No need to go through HL2 to load it, either.

Only issue being to play it, I have to sign into both Steam and Desura, but that's quick and painless.

EDIT: Also, you can download The Cat and The Coup, another dynamic game, off of Steam for free. Or, if you don't have Steam, you can download it seperatley.