Hi! I understand your Mad GunS app on your Mac running OS X 10.15.7 is stuck on the loading screen. Let’s work through some steps to get you back into the game.

First, can you tell me if you've tried closing the app completely and reopening it? Sometimes the game might be running in the background even if the window is closed.

If not, here’s a step-by-step approach we can try:

1. Force Close Mad GunS:
- Press Command + Option + Esc to open the Force Quit Applications window.
- Select Mad GunS and click “Force Quit.”
- Wait a moment and then reopen the app.

2. Check Your Internet Connection:
- Toggle your Wi-Fi off and on.
- Try switching to another network if possible, to rule out connectivity issues.

3. Restart Your Mac:
- A fresh start can clear temporary glitches, so go ahead and restart your system.

4. Check App Permissions:
- Go to System Preferences > Security & Privacy > Privacy tab.
- Look for any permissions related to Mad GunS (e.g., Network, Files and Folders) and ensure they are enabled.

5. Update the App if Possible:
- Open the App Store and check if there is an update for Mad GunS.
- Sometimes outdated versions cause loading issues.

6. Clear Cache or Game Data:
- Since this is a game, it might store cached data causing the hang.
- You can try deleting the app's cache folders if you feel comfortable—usually found in ~/Library/Application Support/ or ~/Library/Caches/ — but please let me know if you want help identifying and removing those safely.

If after these steps you’re still stuck on the loading screen, please let me know whether you see any error messages or if the game gets past any point at all.

These steps usually help with loading issues on similar games2 6 .

Are you comfortable trying these now?