One recurring trope in Wonder Twins shorts, both in 1977 and from 1980-3, was the use of teenagers bullying other, weaker teens into some dangerous stunts that are more dangerous than they realized.
Case in point is "Roller Coaster". The one quibble here is that the abandoned amusement park is right across the road from the movie theatre the Twins are exiting, presumably after seeing a certain movie franchise. The cliched first changes could've been left out for clarity's sake. Voice director Wally Burr voices Atom.
This is one of those cases where, instead of the twins being together for what otherwise could've been a movie date, Jayna (Louise Williams) could've been out with Robin. A missed opportunity if there ever was one.