Rename rename.exe to whatever, duplicate main game exe and rename it to rename.exe

Renaming the exes as noted in other reports is the only way you can get the game to launch, runs pretty well once you do that though, performance wise.

Would just like to add that when using an external controller (i.e., docked mode), even if you don't connect other controllers, the Deck's native controls will be detected as a 2nd controller by default. Problem with this is that the local Versus modes are supposed to be playable solo against the CPU, but this can only happen when the game detects just one controller, when it detects two it won't let you start the game until you assign player 2 to a side. Since currently it is not possible to turn off the Deck's native controls (without some sort of hacking, at least?), this essentially means that playing those modes single player is impossible unless you're playing without external controllers (i.e., handheld mode).