I don't have specific instructions for installing Cosmonious High for PSVR2. However, typically, to install a game for PSVR2, you would follow these general steps:
1. Turn on your PlayStation 5 console and make sure it's connected to the internet.
2. Go to the PlayStation Store from the main menu.
3. Use the search function to find "Cosmonious High."
4. Once you find the game, select it to see more details.
5. If it's available for purchase, you can buy and download it directly to your PS5.
6. Once the download is complete, you should be able to launch the game from your PS5's main menu.
If Cosmonious High isn't available on the PlayStation Store yet or if there are specific instructions for PSVR2, you might need to wait for updates or check with the game's developer or PlayStation support for more information.