Hello everyone, nice to welcome you on our site, this page even has Level 3 answers. I enjoy it =D
Level 3 - TFSUEUR
The answer to this puzzle is:
Words: TURFS, TRUES, FRETS, FETUS, SERF, ERST, RUES, UTES, RUSE, FURS, TRES, EFTS, FEUS, FETS, RUTS, SUET, REFS, FER, FUR, REF, SET, RUE, RES, RUT, SER, USE
Bonus words:
TURFS, TRUES, FRETS, FETUS, SERF, ERST, RUES, UTES, RUSE, FURS, TRES, EFTS, FEUS, FETS, RUTS, SUET, REFS, FER, FUR, REF, SET, RUE, RES, RUT, SER, USE