No it was because I was trying it on hard , it ' s super fast on easy . <| sep |> you get 1 3 treasure keys from the boss depending on how you fighted him earlier . If you don ' t turn offkill some of the features he has in the first fights , they show up later and make your life harder but gives 1 more treasure key per feature . You can get an extra treasure key by killing a super duper mega special space cow named Argus . Silver keys are for the silver doors . If you dont use them they dissapear when you exit lab . no need to freak out most of the times there isnt anything good behind those doors , If the day ' s layout is the right one you can get an extra treasure key from one of the silver doors . There is a little altar in the treasure room , there you get the option to ascend your character . You get 2 passive points that can be spent on a special , extremely strong passive tree . the swirling is probably from that .