Prince of Persia: Prince of Persia Altered

Improved version of original NES Prince of Persia.
There is a original version of NES is very simplified relative original DOS version due to engine limitations. For now an engine of NES version was rewritten and optimized which made it possible to bring it closer to the DOS version.
* Levels now looks closer to the DOS version;
* Modified levels palettes;
* Altered password system. Now algorithm is stronger and works only with certain levels;
* Instead of cutscenes added new ending;
* Altered guards wait pose;
* Added fighting with mirror image;
* The original background pattern of Palace walls;
* And something else :-)

Database match: Prince of Persia (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 6B58F149F34FA829135619C58700CAAA95B9CDE3
File CRC32: 43C7E445
ROM SHA-1: 9BC0211CF659608E375AA2D29CEC1ECDE463CF29
ROM CRC32: 70CE3771