PAL and NTSC formats only apply to TV screens, which (usually) have a fixed resolution and refresh rate. They do not apply to computer monitors, which have variable (and much higher) resolutions and refresh rates. The distinctions between PAL and NTSC only matter to you if you're buying, from an international source, a game console/video player/TV out card/some other device, that outputs to a TV; for example, an NTSC PlayStation2 won't work with a PAL TV.
Games companies do sometimes release different versions of their products in different countries, but with PC games, apart from localisation differences (eg. language) they should all be technically compatible, whatever country they are actually played in. If you were buying MTM64 for the Nintendo64 you'd have cause for checking, but a Windows PC game like MTM2 should work on a Windows PC anywhere in the world.
Definitions:
PAL -
Phase
Alternating
Line is a video standard used in many countries including the United Kingdom, The Netherlands and Australia. When a VHS, DVD or laserdisc is released using the PAL format it can have a maximum resolution up to 625 lines with a vertical frequency of 50Hz. There are different types of PAL standards, one of which uses a vertical frequency of 60Hz instead of 50Hz.
NTSC -
National
Television
System
Committee is another video standard used in many countries around the world. While technically inferior, it's more widely used thanks to its use in the United States and a variety of other countries, such as Japan and Canada. When a VHS, DVD or laserdisc is released using the NTSC format it can have a maximum resolution up to 525 lines with a vertical frequency of 60hz.
Television Standards by Country
