Hello everyone, nice to welcome you on our site, this page even has Level 4 answers. I enjoy it =D
Level 4 - GSNIESN
The answer to this puzzle is:
Words: ENSIGNS, SINGES, GNEISS, SENGI, SINGE, SEGNI, SINES, NINES, INNS, SEIS, ENGS, EGIS, GIEN, SINS, GIES, GINS, SING, SINE, GENS, NESS, SEN, INS, GEN, ENG, SIS, GIN
Bonus words:
ENSIGNS, SINGES, GNEISS, SENGI, SINGE, SEGNI, SINES, NINES, INNS, SEIS, ENGS, EGIS, GIEN, SINS, GIES, GINS, SING, SINE, GENS, NESS, SEN, INS, GEN, ENG, SIS, GIN