Plot Hole - (Gun Ray in Stadium)
When Tracy uses the huge gun ray in the stadium, not only will everyone forget that the Rock is the toothfairy, but also, they will all forget his amazing shot.
Now you could argue that they just erase up to the point where he reveals himself...
BUT!
When using the ray, Tracy says " Good luck finding your cars." - meaning that they would forget everything up to when they came here