Hello everyone, nice to welcome you on our site, this page even has Level 4 answers. I enjoy it =D
Level 4 - LSRKRAPU
The answer to this puzzle is:
Words: LARRUPS, PULSAR, LARRUP, PURRS, RAKUS, PARRS, PURLS, SURRA, SURAL, LURKS, PRAUS, SUPRA, LARKS, SLUR, RAKU, PURL, SULK, SARK, PULA, ARKS, AUKS, PARR, RASP, PURR, PARS, PALS, SPUR, SURA, LARS, ALPS, RAPS, LAPS, SAUL, SKA, PUS, SPA, PAS, LAP, UPS, SUP, ASP, RAP, ARK
Bonus words:
LARRUPS, PULSAR, LARRUP, PURRS, RAKUS, PARRS, PURLS, SURRA, SURAL, LURKS, PRAUS, SUPRA, LARKS, SLUR, RAKU, PURL, SULK, SARK, PULA, ARKS, AUKS, PARR, RASP, PURR, PARS, PALS, SPUR, SURA, LARS, ALPS, RAPS, LAPS, SAUL, SKA, PUS, SPA, PAS, LAP, UPS, SUP, ASP, RAP, ARK