Going back to something that was mentioned earlier:
(bit weird that the moon doesn't seem to move, though)
My opinion: If an
unmade bed can be art, even games like Mortal Kombat can be classed as art too. :P But I think someone said that earlier in a better way than I did.
Everybody's definition of art is different - Much like everyone's definition of music (for example there are people who think the sound of traffic going along a street is music even though I wouldn't agree with them - I won't go into that though). My definition of art are objects or items that are created for the purpose of looking or sounding nice, so I don't think games themselves can be defined as art since they're made for the purpose of entertaining people, however they can have fantastic artwork inside them which can be an important part of their entertainment value.
It's like if you have a tool or a weapon with a decorative handle, I wouldn't define the tool itself as art - But I'd define the artwork on the handle as being art. I'd only define the entire tool as being art if it was made to look nice rather than to serve a practical purpose. (Hmm, this may be a bad example, though)
Flower for PS3 is a game that fits into my definition of being artwork:
There are gameplay aspects to it, and you have goals (collect petals), but it really does seem that the emphasis on the games content is on its artistic value, rather than its gameplay.