Possible Malware

I have noticed that whenever I go a day without using this app, I have no single problem with my phone. But whenever I play the Word Scramble game in this app, it triggers not only the freezing of this entire app but also other apps on the phone like Youtube, Facebook, and Web browsers, forcing me to reboot the phone, after which the everything begins to function normally. The Word Scramble game seems to be rigged to freeze the entire app or it's internet connection once you cross a certain threshold of points. It only functions smoothly if you score a low number of points. The app only freezes with this particular in-app game. The other games that give low points never trigger an app or system wide freeze. In fact, if I only play the other games without touching the Word Scramble game, there are never any problems with the app or the phone.