Yeah that part with Peach morphing into Bowser was pretty scary. Gave me goosebumps for a while.
I used to get scared while playing Prince of Persia as a teenager. That's one of the reasons why I never finished that game without cheats. The castle felt so empty and desolated, with only a few scattered enemies.
And then they drop the damned floor out from under you! There goes all my false courage, Nintendo.