Party Line - S1-E8
Revealing mistake: When Mario says that he reinvented the telephone, the phone is briefly layered over him. (00:02:59)
Party Line - S1-E8
Revealing mistake: When the screen switches from Oogtar to Yoshi while they talk on the phone, Oogtar remains for a short while. (00:03:30)
Party Line - S1-E8
Revealing mistake: When Mario says that the vines are multiplying, his eyes glitch for a few frames. In the same shot, Luigi's eyes are mostly closed. (00:03:59)
Party Line - S1-E8
Revealing mistake: When Mario and Luigi are climbing the tree, Mario briefly appears to be climbing in midair. (00:05:26)
Party Line - S1-E8
Revealing mistake: When Mario and Luigi notice the caterpillars climbing the tree, one of them appears from thin air. (00:05:34)