Hello everyone, nice to welcome you on our site, this page even has Level 6 answers. I enjoy it =D
Level 6 - ILUBNGID
The answer to this puzzle is:
Words: BIDING, IDLING, BLUING, LUBING, DUBLIN, BLINI, UNBID, LUNGI, BINDI, DING, GLIB, BUND, IBID, BIDI, BLIN, LING, BUNG, GILD, GUID, DUNG, NUB, LUG, BUG, DIN, BIG, GNU, GIN, BID, DUN, LID, DUG, LIB, LIN, NIL, NIB
Bonus words:
BIDING, IDLING, BLUING, LUBING, DUBLIN, BLINI, UNBID, LUNGI, BINDI, DING, GLIB, BUND, IBID, BIDI, BLIN, LING, BUNG, GILD, GUID, DUNG, NUB, LUG, BUG, DIN, BIG, GNU, GIN, BID, DUN, LID, DUG, LIB, LIN, NIL, NIB