Hello everyone, nice to welcome you on our site, this page even has Level 4 answers. I enjoy it =D
Level 4 - RTTELA
The answer to this puzzle is:
Words: RATTLE, TATER, ARTEL, TETRA, LATTE, RATEL, TALER, TALE, TELA, TATE, LEAR, TEAT, TEAL, TARE, EARL, TART, TAT, ARE, TAR, LEA, TEL, LAT, ETA, ATT, ATE, TEA, ALT
Bonus words:
RATTLE, TATER, ARTEL, TETRA, LATTE, RATEL, TALER, TALE, TELA, TATE, LEAR, TEAT, TEAL, TARE, EARL, TART, TAT, ARE, TAR, LEA, TEL, LAT, ETA, ATT, ATE, TEA, ALT