Arcade Games run 2048

[Zaenus]

I am new to launchbox and downloaded a few arcade rooms and tried loading them into launch box that worked but when I tried to launch them the game 2048 opens up how do fix that

[C-Beats]

Sounds like you're using RetroArch instead of MAME and don't have the core set correctly. Do the following:
1) Open LaunchBox
2) Open the Tools Menu
3) Navigate to Manage > Manage Emulators and select it
4) Find RetroArch in the list of emulators and press edit
5) In the Edit Emulator window that opens go to the "Associated Platforms" tab
6) Find the row for the platform in question, in the core column you will see a "2048_libretro"
7) Change the core value to whichever MAME core you are wanting to use
8) Press OK and try to launch your game again