Hello everyone, nice to welcome you on our site, this page even has Level 5 answers. I enjoy it =D
Level 5 - IERRAIP
The answer to this puzzle is:
Words: RAPIER, AIRIER, RAPER, AIRER, RIPER, PARER, PRIER, PARR, PERI, RAPE, PIER, APER, ERR, AIR, APE, ARE, RAP, IRE, REP, PER
Bonus words:
RAPIER, AIRIER, RAPER, AIRER, RIPER, PARER, PRIER, PARR, PERI, RAPE, PIER, APER, ERR, AIR, APE, ARE, RAP, IRE, REP, PER