mkm is a good buy for the most part but i kinda like the ps1 version better. as for umk3, it depends. it is the shittiest port of all mk's but if thats the only version you can get then get it. but if you have an snes, saturn, or some other system that has mkt then dont bother. i had umk3 on genesis (moms got the wrong version for christmas) and it was OK considering i couldnt get another one.