I saw this jolly little film at age 10/11 in 1979 when it was broadcast on CBS. I didn't know it had been in a theater at all. To rate it from a kids point of view I'd give it 4 out of 5 stars,because being a young boy at the time,it seemed a little "girlish".
The climactic scene where Gazooks tickles the daylights out of everyone was a bit disturbing at the time but you outgrow that sort of thing.
When I re-discovered it a Blockbuster Video in 1995,I had to revisit it! I still liked it despite the fact that it looked a bit "old". I don't know where the other reviewer on here got the idea that it wasn't on VHS.
It's out there. Might even be on DVD by now,at least I hope it is. I want to share it with my kids someday! 10 stars on here,it's still a great kids film. (end)
09/08/2009 : Finally found a VHS copy!! Woo-hoo!