Hello everyone, nice to welcome you on our site, this page even has Level 4 answers. I enjoy it =D
Level 4 - GNAKCLI
The answer to this puzzle is:
Words: CALKING, LAKING, LACING, CAKING, CALKIN, CLANG, LIANG, LINGA, LINAC, ALGIN, CLINK, ACING, KIANG, LIGAN, GLIA, LANK, KAIL, GINK, CLAG, LAIC, CALK, AGIN, KAIN, LANG, AKIN, KINA, LING, NICK, CAIN, LINK, LAIN, KILN, ANIL, GIN, ILK, CIG, CAN, LAC, ANI, LIN, AIL, NIL
Bonus words:
CALKING, LAKING, LACING, CAKING, CALKIN, CLANG, LIANG, LINGA, LINAC, ALGIN, CLINK, ACING, KIANG, LIGAN, GLIA, LANK, KAIL, GINK, CLAG, LAIC, CALK, AGIN, KAIN, LANG, AKIN, KINA, LING, NICK, CAIN, LINK, LAIN, KILN, ANIL, GIN, ILK, CIG, CAN, LAC, ANI, LIN, AIL, NIL