Was going to add some more to get Don't Go In The House (and maybe Switchblade Sisters), but it would appear you can't select more than one reward tier. Or perhaps I'm just doing it wrong? I seem to recall selecting a couple of tiers for something else, but perhaps it was IndieGoGo. The bundle tiers with those included all seem to have the $20 for an on-screen credit reward included, which I'm not really interested in. Oh well, they've made what they needed now anyway I suppose.