There is evidence that fangames behave differently on certain computers, in particular those of a few Asian players. For those that haven't talked to me about this before, what I'm referring to is a phenomenon of certain Asian players doing challenges that seem to be physically impossible for Westerners. The most famous example of this is multiple Japanese and Korean players purporting to beat "the Leehe Trap jump" (a triple diamond raised one tile), which is impossible on Western computers (Shadow says he did it once, but since he hasn't been able to reproduce this or get in on video, I don't know what to make of that).
The clearest evidence is this video showing Qoo beating a jump in Brute of a Man that has been thoroughly tested and shown to be impossible, at least on our computers:
His double jump seems to defy the physics that the Kid follows in Western computers. Also, him getting this far in the game would have required him to beat another impossible jump earlier in the level. Furthermore, Kamilia claims that two players have beaten the entirety of the game (and I highly doubt he was referring to the mod).
I really want us to find out more about this discrepancy in physics, but it's difficult due to the language barrier. I would really appreciate it if anyone here who has contact with a good part of the Japanese or especially Korean community to help me get information on this. I would like to have the players who are able to pull of these impossible tasks to perform certain tests for me that would allow me to figure out exactly what's going on. Also, we shouldn't discount the possibility that there are Western computers with these alternate physics. If anyone wants to test the jump in the video above, just put into Geezer's program and see if it's beatable on your computer. It's a rather simple jump, so if it is possible on your computer, it shouldn't be too hard to clear.
Ideally, we should be able to modify the Yuuutu engine so that it behaves under the rules of these other physics even on Western computers, so that challenges like Brute can be available to us (without having to artificially mod it to be beatable under our physics).