This thread hasn't had much activity in a while (and isn't likely to in the future either) so I'll post the list as it stands, with totals for each group of levels.
LEMMINGS
Fun - 1-13, 17, 18, 21, 24, 25, 27, 30. (20/30)
Tricky - 1, 2, 15-20, 22, 23, 26, 28. (12/30)
Taxing - 6, 9, 18, 19, 22, 24, 30. (7/30)
Mayhem - 3, 4, 11, 14, 16, 20, 24, 26, 27. (9/30)
TOTAL - 48/120
ONML
Tame - all except 13. (19/20)
Crazy - 1-3, 7, 11, 13, 15, 18, 19. (9/20)
Wild - 1, 5, 6, 8, 9, 20. (6/20)
Wicked - 1, 5, 6, 8, 12, 14, 16, 17, 20. (9/20)
Havoc - 4, 6, 10, 15, 20. (5/20)
TOTAL - 48/100
XMAS
Xmas 91 - none. (0/2)
Xmas 92 - 1, 2. (2/4)
Flurry - 2-7, 9, 11, 12, 14, 15. (11/16)
Blitz - 3, 4, 6, 7, 12, 14, 16. (7/16)
Frost - 3-6, 8, 9, 11, 13, 15, 16. (10/16)
Hail - 1, 2, 4, 6, 12, 15. (6/16)
TOTAL - 36/70
Overall - 132/290