Liu Kang vs Reptile near the end of the first film.
Liu Kang's utter trouncing of Shang Tsung in the climax. "Flawless victory."
Right the very end, when the Emperor shows up but the heroes aren't fazed for even. one. second.
This troper was in the theater on August 18th, 1995, the day this movie came out. The opening theme started to play, which is enough to get anyone's blood pumping, then fire began to erupt around some kind of symbol until the camera pulled back to reveal Mortal Kombat's iconic dragon logo. Everyone stood up and started cheering.