How to delete Bingo Bash data game from iPad
Apple doesn't implement a user method to delete data stored in iCloud or Game Center.

You need to ask the developer to make that code in the app itself. I'm fairly certain a program that can write data can also clear it - but it's really up to them to implement that call to Apple's API in GameKit and CloudKit respectively.

See:


How do I delete data for one game in the iPad Game Center?