The mod loader allows you to swap two files together without having to mess with the game's files. All you have to do is create a folder called MKMods and the game will automatically load from there.
New Tutorial (MK Ultimate) using MK11Hook:
Tutorial video:
What you can swap with this is the Fatalities and Movesets as well as Victory Poses. For Intro Swaps check the next video.
In order to swap intros, you need to swap two strings together:
CharacterName_IntroLetter_CharIntro_ScriptAssets
example:
SUBZERO_C_CHARINTRO_SCRIPTASSETS
It must be all capital letters else it will not work (maybe). You have to swap both of them into the new letter. Example, if you equipped Subzero's first intro, and Scorpion's 2nd intro, but you need them to do each others' 4TH intro, then you need to swap:
SUBZERO_A -> Scorpion_D
Scorpion_B -> Subzero_D
Tutorial:
Cheat Table Download Link: Updated Versions by _ix_:
viewtopic.php?f=118&t=47314&start=45
download/file.php?id=11840
You need the Patched EXE for Mod Loader to work, and you need Cheat Engine bypass for Intro Swaps to work.
Patched EXE:
https://mega.nz/folder/b0kmTQgD#rsyWS8aRxmN4Bj_8NLdGNg