Level  01 is not solvable -- would be 8 emeralds short even if pass all 16 rocks through magic wall
Level  05 is not solvable -- 175 emeralds to collect, no more than 94 exist in the level
Level  06 is not solvable -- 255 emeralds to collect, no more than 166 reachable
Level  08 is not solvable -- cannot get out of initial area
Level  09 is probably solvable, but it's too annoying
Level  11 is not solvable -- 113 emeralds to collect, only 62 exist in the level
Level  12 is not solvable -- no blue key to get out of initial room
Level  13 is not solvable -- 145 emeralds to collect, only 18 exist in the level
Level  14 is not solvable -- 116 emeralds to collect, I can only get 97; looks like the 18 quicksands above the magic wall are supposed to contain rocks, then I'd only be 1 short and could probably get 1 more out of the bugs inside the yam (but not 19 more)
Level  15 is not solvable -- amoeba grows way too fast, blocks important parts of the level; no exit
Level  16 is not solvable -- at least 16 emeralds short
Level  18 is probably solvable, but it's too annoying
Level  19 is not solvable -- cannot get out of initial 2 rooms
Level  22 is not solvable -- no exit
Level  23 is not solvable -- need (green & blue keys + 7 more dynamites) or 11 more dynamites to get back from emeralds; need a way to return past the robots (magic wheel or 2 more dynamites)
Level  24 is probably solvable, but it's too annoying
Level  28 is not solvable -- 245 emeralds to collect, only 244 exist in the level
Level  29 is not solvable -- need 4 more dynamites or something
Level  36 is not solvable -- blue key unreachable; without it, cannot get enough emeralds (can't reach bugs); cannot exit level (can't reach 5th yamyam / 4th kill)
Level  41 is not solvable -- spaceships in left side of playfield don't cycle clockwise because two bump together in the sharp turns on the left side; also, rocks fall immediately through plants, destroying 10 necessary diamonds
Level  43 is not solvable -- can't get back out of rocks + emeralds room through which red key is acquired from 1st yamyam
Level  46 is probably solvable, but it's too annoying
Level  48 is probably solvable with more time, but not in the given 300s
Level  53 is not solvable -- no exit
Level  54 is not solvable -- no exit (or anything else)
Level  55 is identical to level  50
Level  64 is probably solvable, but it's too annoying
