I've put up some sample tests here using the JLPT 4 vocabulary sets
Adjectives and Adverbs:
http://davidmontoya.com/stuff/JLPT4_Ad.lrf
All Words:
http://davidmontoya.com/stuff/JLPT4_All.lrf
Verbs:
http://davidmontoya.com/stuff/JLPT4_Verbs.lrf
It's still rough but it's a start, comments appreciated~~