Do I open DownfableUncompiled From Gamemaker or from the zip file? Since when I opened it from the file it opened gamemaker but then said "file (insert png or timeline here) not found)" and it does that for every single file. Causing me to have to either restart my computer or click through every single window. Then when it finally starts every single file just says "undefined_" So uh, any tips?
Did you unpack the zip?
You need to extract the zip file to another location using an archiving tool.When you do, it will no longer be a .zip but a folder containing the project's assets. You can briefly look through the asset folders to make sure they're not empty, if they are you may need to try redownloading.
In that folder will be a file called UndertaleRemake.project, which you can open with Game Maker.