El Giza's Seal

Sure it's an MSX game. It's Kings Valley 2:

http://www.generation-msx.nl/msxdb/softwareinfo/1079

The screenshots are from the MSX2 version. There are two versions, both with SCC sound and maybe the same stages (I only have concluded the MSX1 version). I think the only important difference is the graphics.

The game is wonderful, amazing, an astonishing piece of code, graphics and sound.

And it is one of the best MSX games and the last Konami game for MSX1.It's not the last Konami title for MSX1... Nemesis 3 deserves that honour

@Konamito:
I did. It was not so difficult. Patience and clear thought is the way to go.

There are 60 main stages. I do not think that are someone that have finished from the beginning without passwords.

In the MSX2 version there is some odd freezing when you thraw some weapons like knifes etc... The MSX1 version run totaly smoother on this point, which makes it a little less stranger to play.