Well what kind of tiny is it? NTSC picture on a PAL screen tiny, which takes up about three quarters of the vertical area, or is the image somehow squashed in some other way?
A very large amount of games only use the NTSC screen area.
Stick in your workbench 1.3 disk and look at the size of the initial CLI window that pops up. That is what an NTSC sized picture looks like on a PAL screen.
