Boss battle against Porky, a.k.a. Pokey in Earthbound for SNES. Porky comes standard with a PSI Shield so refrain from using PK attacks other than Kumatora's Level 60 Ground attack. PK Thunder will work if you don't have PK Ground but seriously PK Ground will help greatly in this fight. I suggest having Lucas increasing everybodies offense while Duster decreases Porky's Defense. Use Kuma's PK Ground and have everyone else do sound combos and heal with recovery items. The battle can be rather short if you speed through Porky's blabber though.