It would depend on more than just the game but the person playing it. It is more the fact that you might not think of it as exercising and think of it as playing and put in more time and have more fun doing it.
Depends how much you move
turn of the game system and go outside and burn some calories
As many as you like. Usually, the arrow key will move you a single increment (determined by the software application you are using).
Well, first of all there's nothing you can do about it. Like a car engine needs fuel to make the car move, your muscles need calories to make your body move. Secondly, as long as you're able to eat regularly you'll keep topping up the calories in your body, so using some up isn't a problem
Oh, sure. Living bodies always burn calories, you can't stop it. And the more you move, the more you burn. And as bike riding involve a fair amount of movement, it can burn plenty of calories.
Well, sort of. Watching TV is a very passive occupation(you don't move around a lot), and if you don't move you don't burn many calories. And if you only burn a few calories it gets easier and easier to eat more calories than you loose over a day. And if you're eating more calories than you burn the excess calories will stay with you as weight gain.
move more, eat less
1 cup cooked has about 35 calories. This is without butter, of course :)
The more calories that you ingest, the fatter you get (but ths also depends on how much you move around/exercise).
No, many are what we would call fixed. If they are bacteria, many do not move except if the place they are in (a tissue for example) would slide or move in some way.
It's probably got a burnt out clutch pack
It depends on what you mean. Calories give you energy and energy helps you move, talk, and do other things so in a way, yes you do need calories to grow.