*dumps bucket of ice on hypersonic*
dude, chill out. chillax.
Personally, unleashed, is just what the doctor Eggman ordered.
its got only sonic, speed, which is what sonic games have been lacking since SHTHH, A kickass soundtrack, and a great engine, and easy controls. granted, I dont quite like the werehog, but Sega needs to make money, and they needed something innovative to sell it. since its only sonic, only speed, and just what we all wanted, we have to compromise, and have a gimmick. but at least the gimmick is enjoyable in its own right. its comparable, and makes me think of actually, knuckles. In fact, I often think that knuckles should be the one in the night segments with all those punches and stuff. make a wereknuckles instead.

he would be better suited for it.

anyway, even the PS2/wii versions are enjoyable, although the werehog levels are severely lacking in those versions, other than that. if you want less speed, try out the PS2/Wii version. it has less speed than the other version. it might appeal to you more than the 360/PS3 version.
It's more of a problem in strange or "laboratory" stages, which has oddly lighted blocks and tiles. That's when spikes are most likely to show up, though.
name any stages in particular.