Level  12 is not solvable -- needs 150 emeralds, supplies only 140 (also, P2 starts out dead!)
Level  13 is not solvable -- totally broken -- cannot get green key, blue key, the yamyam that contains the green key, the bomb needed to get the blue key, etc.
Level  25 is not solvable -- has no exit!  Plus 9 extra emeralds, FWIW.
Level  36 is not solvable -- needs 9 more emeralds and 3 more dynamites
Level  76 is not solvable -- needs 1 more dynamite.  I think.
