Stephanie Fitzsimon’s review published on Letterboxd:
As a long-time fan of the animated series, I was disappointed with the plot to Invader Zim: Enter the Florpus- more specifically when Zim is just 'EHHH WHATEVER I DON'T CARE'. I do love Gir though and anything that little bastard robot does is worth watching this for. I couldn't stay focused on over a whole hour of this style of animation as an adult (perhaps thirty-minute episodes were the maximum my adolescent mind could digest at the time and I preferred it that way). Gas never wants to touch Dib. Dib is fused with a chair. I did enjoy seeing Gas spiff him up though. If nothing else, Gir fans will enjoy this just for him, as I did. I couldn't recall the ending if you asked me. Sorry for the incomplete review of something I thought would be a lot better. It wasn't bad, it just wasn't...good. The animation was just better back then in the original show, somehow.