How bad is it? Home movie made by stoners.
Should you see it? Maybe. It has a couple of laughs. If you're stoned, maybe a few more.
Shot on a home video recorder, this even has the time stamp showing through most of it; there's also stock footage of helicopters and police raids on marijuana fields that have different time stamps (that I noticed shows how bored I was). Police burn a marijuana crop that happens to have prehistoric plants that look suspiciously like sequoias and this awakens a dinosaur that lives on the plants. It goes on a rampage as it seeks marijuana. The dinosaur is a man-sized inflatable moved by stop-motion; it's held by hand to keep it in place and the hand is usually visible. It's mildly amusing, but it runs out of steam fast. The monster is forced into the ocean at the end.