Yeah. Goliath pulls some heavey duty G's. The helix at the end is hardcore and the part where most black out. The last time I rode it in the hot sun I got VERY light headed and disoriented and was able to pull myself together enough to make it out of the exit.
As far as the comparisons to Mission:Space Let's just put it this way; Mission: Space aint got nothin' on Goliath.