We are investigating a stability issue that may be related to the Android 11 OS. Upgrading to Android 11 may cause your TMNT: Mutant Madness game to become unplayable. We hope to have more details soon, but resolving it the issue, but it may take some time.
We have high hopes that issues will be resolved with our next build, version 1.30 which should release in mid January. If you are interested in testing out this build before others can play it, please apply to be a beta tester.
Thank you for your patience!