The H-Man: Mill Creek Blu Ray
https://www.blu-ray.com/movies/The-H-Man-Blu-ray/265935/
Trailers https://www.youtube.com/watch?v=PDzxJWpoSVs & https://www.youtube.com/watch?v=0w3IYoCDUGs
The Tokyo sewer system is an oozing mess after a radioactive liquid turns people into slimy blobs that float down the drains following a rainstorm. To add to the havoc, the gelatinous masses then begin to reproduce. The blobs are ultimately destroyed in a fire that lights up the city.