Well that was neat.

this time's suggestions for the next time, would be - firstly, try to choose a song that better fits the length of the video or something, or make it two-songs so they fit. second - try using some effects maybe, play with it; third - about the credits, you used the default colors I think(?), and font etc, try to play with it some too.
lastly, and probably the most important, since you're filming several tries, we're actually seeing some parts of the caves many times over and over again. So I suggest you find a way to keep the viewer interested, for example, after dying, making a fadeout and fadein on the same spot at the next attempt, etc. such vids can be much more entertaining if you waste more time in creating the vid than in the practical filming of the movie. some vids for example have bloopers(shots at the end of the video showing lots of silly deaths etc).. think about it.

anyway, you're going exactly the right way, step by step.

What shos said, plus make sure you're not filming the cursor You can fix this in HyperCam under Options --> Record Cursor.