well, there are two types of spikes that can appear on the level. the first one is completely static, it appears and disappears every mutation tick. but the second type is a moving one. they are coming in and out of the ground while they are on the level. maybe moving spikes is what seems to be the issue? if so, i made another version and moving spikes should be visible for more time before they become danegerous. also, i fixed this "failed to load mono" error (it turned out i screwed the .zip file again), so please check it out again!