Searching for Something I read long ago need help!

So i'm searching for manga, it's shonen or seinen. Horror too. It's about these friends or classmates that gets kidnapped and wake up in a big room some kinda basement i think. They have to get out of there but of course people start getting killed. The killer wears this bloody bunny mask covering the whole head. I think they had some barcodes or numbers on them too. That's everything i remember. Hopefully this rings bells for someone and i can read it again~ thank you in advance <3