During the early part of the first season, Bulk and Skull would occasionally be presented as threats, physically intimidating or attempting to assault the Rangers or others; Bulk even had a bench press record in "A Pressing Engagement". Over time, while still being antagonistic, their more aggressive nature was toned down and they would get some more sympathetic portrayals. In the first-season episode "Foul Play in the Sky", which had footage shot later in production and then edited in later, Bulk and Skull were even shown with a normal hobby, plane-spotting and politely asking to join Kimberly; "A Pig Surprise" would have them happily looking after a pig; and in the three-part "The Ninja Encounter" in season two, when Bulk spotted a runaway baby stroller, he and Skull immediately sprang into action to help out, and the duo would spend the rest of the episode looking after the baby boy until his father escaped Goldar's clutches. This was also the first time the duo were seen on skateboards which, despite their generally unathletic nature, they appeared moderately skilled at.