Hello everyone, nice to welcome you on our site, this page even has Level 3 answers. I enjoy it =D
Level 3 - ETRSSTE
The answer to this puzzle is:
Words: RETESTS, TERSEST, SETTERS, STEERS, RESETS, TESTES, RETEST, SESTET, STERES, SEREST, ESTERS, TSETSE, SETTER, TESTER, REESTS, SERES, SETTS, STERE, TRESS, ESTER, ERSES, REEST, TRETS, STETS, TERSE, SEERS, REES, TRES, SEES, TEES, SETT, SERE, RETE, ERST, SETS, RES, ERE, SER
Bonus words:
RETESTS, TERSEST, SETTERS, STEERS, RESETS, TESTES, RETEST, SESTET, STERES, SEREST, ESTERS, TSETSE, SETTER, TESTER, REESTS, SERES, SETTS, STERE, TRESS, ESTER, ERSES, REEST, TRETS, STETS, TERSE, SEERS, REES, TRES, SEES, TEES, SETT, SERE, RETE, ERST, SETS, RES, ERE, SER