A major improvement over the first movie, although the series has gone downhill since the introduction of Dill, with only a few episodes matching up to the original first run. This is a welcome addition to the later era of Rugrats - fast paced, never annoying, with a climactic robot battle that might have influenced Pacific Rim. Strangely, Chuckie leads this film far better than Tommy lead the first.
Probably the point where the franchise started to wear out its welcome. Chuckie's new sister is an un-necessary addition to the group, the jokes are based way more on bodily functions than usual and the jokes just don't hit quite as well as they used to. The first movie worked because the the concept of babies in their own world was still there. This one went too big!