Is a microscopic giant robot still a giant robot? And do our bodies really contain microscopic planets, suns, galaxies, and so on? According to this movie, the answer is YES. Another masterwork mash-up of various Korean animations by Hong Kong schlockmeister Joseph Lai, watching this movie will redefine "pain" in your mind. From an outside review:

So basically, it’s The Fantastic Voyage but with giant robots and Robin Hood’s Merry Men.

Yeah.