Hello everyone, nice to welcome you on our site, this page even has Level 12 answers. I enjoy it =D
Level 12 - REIBLRO
The answer to this puzzle is:
Words: REBOIL, BOILER, BIRLER, ORBIER, LIBER, ROBLE, OILER, ORIEL, REOIL, OBELI, BRIER, BIRLE, BORER, ROIL, BIRR, RIEL, BRIE, LOBE, BILE, LIRE, BIRL, BIER, BIRO, BRIO, LIER, RILE, BOLE, BRO, LIB, IRE, REB, BIO, LEI, OLE, ERR, ROE
Bonus words:
REBOIL, BOILER, BIRLER, ORBIER, LIBER, ROBLE, OILER, ORIEL, REOIL, OBELI, BRIER, BIRLE, BORER, ROIL, BIRR, RIEL, BRIE, LOBE, BILE, LIRE, BIRL, BIER, BIRO, BRIO, LIER, RILE, BOLE, BRO, LIB, IRE, REB, BIO, LEI, OLE, ERR, ROE