Ice weapons don't deal damage, how do I get this achievement?

i dont even have that game but its incredible

the tutorial jumped from talking about the first weapon (fire) to the third weapon (ice), without explaining how to switch weapons. I mashed buttons and figured out it was the Q button, but ended up hanging the tutorial and had to force close the game.

I hope it will be better and more stable than the previous one which required a NASA PC to run it at 60 fps .

so i've gotten all the achievements in this game yet on my profile it says it's not a perfect game. anyone know why, is it just a steam/bug thing?