Then we use the guard to perform a 'Yolo skip' through the door. First, we 'moonwalk' the guard through the chomper, then we make him fall 2 stories without dying by exiting and reentering the room. Perhaps the most broken of all levels, we employed the newly discovered level 7 skip which contains a whole array of glitches all working in unison. A nice jump over the hole in the second-to-last screen was found by the bot
The rest of the level includes the normal route, optimized via the bot. This is performed by luring the guard to the left and then clipping through the door while on-guard. Here the door skip is employed to skip a big part of the level. The bot's contribution is minimal here, optimizing a few movements before/after the mirror. Here a few known skips are used, most notably using the guard to open the first door. An RNG-induced hit by the skeleton saves a few backward steps with the sword. Movement, especially while ascending/descending the way to the exit door open tile has been highly optimized. The bot-optimized movement here played a big role in shaving those last few frames. No changes to the route here compared to RTA, but a lot of RNG optimization by the bot to skip all guards faster. The strat includes bunny hopping at the beginning for a quick fall and then skip the guard via a timed jump.Ī long level. The route for this level has been proven to be optimal by the bot on sheer brute force. Following strict definitions, the re-Record count is: 836,877,925,474. We've applied Jaffar repeatedly on a supercomputer to solve for every level. As a result, the bot found the most efficient way to traverse the community-established route. The search is made possible by constraining the exploration space to that of a pre-determined route, requiring a few trillion states per level. The development of an open-source version of the game ( SDLPop) allowed the development of a high-performance parallel breadth-first search bot, called Jaffar that exhaustively explores all possible movements in each possible frame. Fortunately, more human-friendly versions of these skips have been developed after their discovery. Thanks to the use of emulators (JPC-RR) and memory debuggers (Cheat Engine), the discovery new tricks (e.g., level 7 and level 8 skips) that would have not been otherwise possible, as their discovery required a frame-perfect input and RNG-heavy setups. Frame by Frame Analysis / Memory Debugging The development of this TAS is largely based on the existing route but has introduced two novel approaches: The route has improved a great deal during the last few years thanks to the use of savestate-enabled emulators (e.g., DosBox-X), allowing players to try different tricks without losing too much time. Notable contributors to the routing are the actual game top speedrunners, such as (in no particular order) crem, CapnClever, 7eraser7, Karlgamer, YOLO4GG, GoodSpectre, Higlak, Velcheran, Creditor, WinterThunder, uvq3tsa, Wolfadawn, KenshinTrek, and GMP.
#Speedrunners game changing tiles to shadows movie#
This movie is the result of decades of routing and discoveries, and has been developed with extensive help from the current speedrunner community. HDD Image: Contains only Prince of Persia 1.0 Here some guard reaction times and probabilities are changed, but overall the gameplay is the same.īoot Floppy: FreeDOS 1-1-35w (Build 2035w) from Only difference is that we use the Prince of Persia 1.0 version as emulation for newer versions does not handle sounds well. In general, this run abides by the same rules as the RTA runs. In this case, it results in an estimate of 08:58m which a notable improvement compared to 12:20.58 of the previous level-skip TAS produced by David Newton ( video here ). Level 14 is only accounted for in RT, hence the difference between both times.Ī potential level Skip run IGT can be obtained by subtracting the time for the first 3 levels. The IGT starts immediately on Level 1 and stops as soon as Jaffar dies in Level 13, as this is the time taken for the high-score board. However, it is the IGT the one used as the metric for speed, as it omits cutscenes and account for changes in framerate (the game operates in 12 FPS normally, but 10 FPS during combat). This movie makes the best effort to reduce the real time to solution. This category requires that all levels are completed (without skipping the first three levels using the SHIFT+L code). In the "any%" category, all tricks and glitches are allowed except for the use of cheats. The objective of the game is to beat all 14 levels in less than 60 minutes (IGT). Little does poor Jaffar know that he will be defeated in a fifth of the intended time. You, the brave youth who is a prisoner in Jaffar's dungeons must rescue her within 60 minutes.
In this timeless classic, the tyrant Jaffar has seized power and has forced Sultan's daughter to marry him.
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