interesting find, i must admit my first thought on reading before viewing was how many different ways can you climb a ladder? but still, quite interesting
I think it goes without saying that we did not see this and then decide to make some minor changes and produce Crysis, it's possible something in this game influenced someone at Crytek, then again it's possible no-one is aware it even exists, inspiration comes from many places and we'd have to ask ALL the devs to find out if someone came up with a particular idea based on this game.
It certainly seems to bring some original ideas to the table for it's time, but since it's a relatively unknown game it must have had some pretty big flaws too.