Thanks eMTe for adding the patch file. New players to 4D Prince of Persia would love you for adding it. 
Oh, forgot to mention, Kirill used version 1.0 to modify and make 4D Prince of Persia levels.
Sorry, I was mistaken, there was no version 1.1 publicly released same like no version 1.2.
Ok, I'll share with you my secret of using the fastest way to test whether your copy of "4D Prince of Persia" had the same bug.
----------------------> I used the Game cheat to skip levels. 
I simply couldn't have played 10 levels each time someone says their 4D Prince of Persia has a bug. 
The cheat for different POP versions are different. Start the game with 4d_prin kirill! (for 4D POP), prince megahit (for POP v1.0) or prince improved (for POP v1.3 & v1.4) to have the get the game in the cheat mode.
For POP / POP4D, after entering in cheat mode, you can use some of the following in-game cheats:
K - Kills all enemies on the screen.
R - Resurrects you where you last died.
+ - Increase time left.
- (minus) - Decrease time left.
Shift-L – Skip to next level.
Shift-T - Extra life (Max is 10)
Shift-S - Heals a lost life.
Shift-W - Float down long drops.
N - Look at screen below the current one.
U - Look at screen above the current one.
H - Look at screen to the left of current one.
J - Look at screen to the right of current one.
Shift-B - Blocks out non-animated objects.
Shift-I - Inverts screen (upside down), press again to restore
C – View Programming Code
WARNING:
* Never ever use the K cheat on Skeleton and Vizar as it will make your game impossible to continue & complete the level.*
* Use cheats at your own risk as using them decreases your enjoyment to having conquered a level*
Just in case, some people are not aware of how to save their game (needed by people who play honestly without cheats). To save game, press Ctrl G at level 3 or above. To restore game, press Ctrl L at the title screen.
Just some information - the reason POP v1.3 is actually better for sound effects is because it allows choosing of sound card (that determines internal / external speakers) through sound setup. I have tried the different sound card options before and it was so interesting. It gave me a few combinations:
-Internal speaker sound effect & internal speaker music
-External speaker sound effect & external speaker music
-Internal speaker sound effect & external speaker music
-External speaker sound effect & internal speaker music
For "4D Prince of Persia", the file that stores level designs is "Kirill.dat". For Prince of Persia (all versions), the file that stores level designs is called "levels.dat". The files can be used interchangably i.e. you can play 4D POP levels using POP game exe or play the POP levels using 4D POP game exe by just renaming the "Kirill.dat" to "levels.dat" or vice versa.
Kirill did a good job of designing the levels for "4D Prince of Persia" as it is quite difficult and certain levels not as difficult as we think. A video walkthrough of "4D Prince of Persia" is available on Youtube.
If you are fond of POP, you could get one of the POP level editors mentioned earlier and make your own levels.
That's all information I remember so far. For more information, you have to ask me the questions.
