Level codes: 
 1 PRISONER
 2 FISHHEAD
 3 REFISH
 4 SHFISH
 5 NYFISH
 7 BIGFISHY
 8 EATDEATH
 9 EATFISHY
10  SLOWFISH
11  FISHFAST
12  PLUNGERS
13  MOPHAPPY
14  JANITORS
15  THROMULI
16  PARAKEET
17  FUZZYDOG
18  SPAMKEET
19  BABYHEAD
20  FISHNOSE
21  FISHTOES
22  FOOTFISH
23  FISHBONG
24  ABCDEFGH