Possible Negative Effect[]
I think an additional negative draw back for the 'Contract From Below' is a reduced rate in room drops . It would make sense as a way to balance out this item.
(different anon here) I think that some enemies might move faster sometimes. Maybe it's a random chance or perhaps it's all in my head.
I believe there's no negative effects, i've picked this item up so many items, and there's no (visible) negative effect. - *Beeooooo* WHAT THE FU....!? *BOOOOOOOOOOOOOOOOM!* 00:13, November 13, 2014 (UTC)
I think it also doubles the damage that you take; as I was taking full heart's worth of damage from enemies that were only taking half a heart before. Perhaps the negative effect is randomized?