I think 320x240 is a good resolution to have for this competition.
If it were more than 320x240 the filesize would be too big and if it were smaller it would be too tiny to make out anything on the screen without fullscren mode. And since everyone don't have the ability/knowledge to do fullscreen it's not an option to have it smaller than 320x240.
But this is just suggestions and the judges reasons may be something entirely different.
The resoloution would be a choice of the writer.
There's a 3mb file size limit anyway.
The graphics choice would be should be up to you.
If people wan't to waist your allowed game space on graphics
that should be your choice.
Btw, you can use the Lives and Score objects too. Forgot about them
Dr Evil Face, its just a competition. I'm not going to modify the rules to suit your needs I just prefer a 320x240 window, or a 320x240 resolution. Like it or don't like it. Enter or don't enter
320x240 is a low res that fits the natural aspect ratio of the monitor, i can not see why tgf offers 320x200 (or whatever it does offer as a standard) as it will run slow fullscreen (rectangular pixels).
I suppose I should work on my entry. I'l start december first, that's a good goal. That way it'll be finished december second and I can get stuck into metroid when it comes out.