This is an ever-growing, non-exhaustive list of the funniest running man episodes, in my professional opinion.
Episode 3:
Telepathy gameEpic scale:
*
Episode 31: Water park episode.
Epic scale:
(really tho he was the highlight of the episode)
Episode 60: Trugary show
Epic scale:
Episode 75:
Dance challengeEpic scale: Honourary HaHa mention
.
Episode 92: Pedometer challenge + Kwangsoo vs Haha "Man to man battle"
Epic scale:
Episode 96: Soccer superpowers
Epic scale:
Episode 105: FD Dongwan's convenience store + Kwangsoo's blossoming romance with a walrus
Epic scale: To be determined
Episode 115: Mud fights
Epic scale: To be determined
Episode 117: Suzy, Yubin
Epic scale:
Episode 118: Choi Min Soo
Epic scale: To be determined
Episode 119: Baseball match
Epic scale:
Episode 121/122?: Running men in fat suits (TBC)
Epic scale:
Episode 136: Golden sword, history,Vietnam idek
Epic scale:
Episode 147: Running man x acupuncture mats = New OTP
Epic Scale:
Episode 154:
Evra & Park Jisung (first appearance of toad!kwangsoo)
Epic scale:
Episode 156:
2NE1 (Enthusiastic Suk Jin, warrior princess Minzy, Dance choreographer Yoo hyuk and toad!kwangsoo)
Epic scale:
*Rated in order of epicness+hilarity, with jongkook being the lowest and kwangsoo the highest:
Jongkook, Gary, Haha, Jihyo, Sukjin
, Jaesuk
, Kwangsoo
(needless to say, anything lower than a sukjin won't make this list, I just wanted to rank them according to my bias)