These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Demonic Spiders: The blue spear enemies that are immune to vault attacks (unless you vault off of a wall instead of them), and the sword enemies that are immune to vault attacks and have a sweeping attack that goes underneath the Prince's guard to damage him anyway.
Game Breaker: Except for the aforementioned enemies that are immune to it (knocking the Prince down when he attempt it,) vault attacks are very overpowered, often knocking down enemies in only two hits. And even with the two immune enemies, if you're next to a wall, you can pull it off anyway by rebounding off of the wall instead of the enemy. This will instantly knock them down, leaving them open for the finisher. The sequels nerfed it.
Alternative Character Interpretation: Given that King Sharaman apparently spends most of his time drinking, enjoying the company of his wives and studying religious scripture, how good of a King is he really? Considering that Nizam is implied to have always been the true power behind the throne, even though he's evil, how badly would he have ruled the Empire, when he's been basically doing that for decades?!
The reason Sharaman's reign was so prosperous is that the two brothers ruled together. Nizam was obviously the brains, while Sharaman was the face and Morality Chain. Take either of them out of the equasion and the kingdom would go to the dogs. It's a shame that Nizam never understood his importance.
Complete Monster: Nizam, the uncle of the hero Dastan, chafed at being in the shadow of his elder brother, the King. To remove himself from under the King's shadow, Nizam set his sights on the Dagger of Time and the Sands of Time, not caring of the horrors and chaos he could unleash on the world. Nizam brought about a battle with an innocent city, not remotely caring of the deaths of innocents, and arranged the death of his own brother while attempting to have his sons murdered. Revealing an utter contempt for the adopted low-born Dastan, Nizam revealed his true goal was to rewind time so he could undo this greatest error: once saving his brother's life when they were children.
Strangled by the Red String: Dastan and Tamina have the whole movie to slowly bond with each other, get into playful arguments and display plenty of Belligerent Sexual Tension. This seems to be one of the good things as their chemistry and the build up feels natural... But their First Kiss comes at the worst possible time. Right after violently dispatching the Big Bad's dragon.
Video Game Movies Suck: The general consensus is that Prince of Persia is the best video game film adaptation ever released by mainstream Hollywood. This is usually followed by the caveat that this is not exactly a high standard to meet.