Hello everyone, nice to welcome you on our site, this page even has Level 4 answers. I enjoy it =D
Level 4 - WERGINB
The answer to this puzzle is:
Words: BINGER, WINGER, GIBER, NIGER, BEWIG, WRING, GWINE, RENIG, REWIN, BINER, BINGE, BRINE, WING, BRIG, BRIN, BRIE, BREN, BINE, WREN, WEIR, BIER, GIBE, REIN, GIEN, WINE, GREW, GIRN, BERN, BERG, WIG, WEN, REG, REB, NIB, IRE, GIN, GEN, ERG, ENG, BIN
Bonus words:
BINGER, WINGER, GIBER, NIGER, BEWIG, WRING, GWINE, RENIG, REWIN, BINER, BINGE, BRINE, WING, BRIG, BRIN, BRIE, BREN, BINE, WREN, WEIR, BIER, GIBE, REIN, GIEN, WINE, GREW, GIRN, BERN, BERG, WIG, WEN, REG, REB, NIB, IRE, GIN, GEN, ERG, ENG, BIN