Hello everyone, nice to welcome you on our site, this page even has Level 5 answers. I enjoy it =D
Level 5 - PEFREUM
The answer to this puzzle is:
Words: FEMUR, FUMER, FRUMP, RUPEE, PUREE, EMEU, FEME, FERE, PERE, RUMP, PERM, PERU, FER, ERE, FEM, REP, UMP, REM, PEE, RUE, REF, EMU
Bonus words:
FEMUR, FUMER, FRUMP, RUPEE, PUREE, EMEU, FEME, FERE, PERE, RUMP, PERM, PERU, FER, ERE, FEM, REP, UMP, REM, PEE, RUE, REF, EMU