how do i use the items in the top left corner of the screen?

[Dream_777]

i just got the wrath of lamb dlc and so far its pretty awesome, but what do those items in the upper left corner do? and how i use them? and also on some of the levels it wont show the map, like ill go into a new room but none of the rooms are showing up.

[RealliSt]

You can not use them, they have passive effects

[Dream_777]

Originally posted by RealliSt:

You can not use them, they have passive effects

oh ok, then what does the cursed skull do?]

[Hili]

it teleports you out of the room if you have half a red heart (and always if you get hit while only having spirit hearts)