So basically, I like finished the game and stuff and went on a search for all of the legendaries (well most of them). Then I realise I need to catch Kyurem. So I go into the giant chasm and go through the forest maze thing. I get to the pond and nothing happens. Normally Kyurem would realise your there and make the whole place covered in snow. and then you go through a entry thing into the cave and you find Kyurem etc. but nothing happened. I'm so confused -_- PLS HELP ME ;-;
Kyurem doesn't make snow when you see it. Only if you battle ghetsis.
When you seem kyurem, press a on it and it will battle you, being at level 75. If you want black kyurem, you need to go to the back of the cave to get the DNA Splicers.
I see what you mean. I think when you talk to it makes it snow, but if that doesn't work it might be a glitch that won't harm your game.