This app was mentioned in 3 comments, with an average of 1.33 upvotes
Brick Breaker Star is neither hidden nor a gem. The ads are very intrusive: (1) There are always-on animated ad bars on the top of the screen, (2) After playing a level you're served a video ad, and (3) You can obtain premium currency by viewing video ads. Power-ups are only obtained through premium currency which significantly reduce the difficulty of a level. ArkanoidX is a much better alternative. There is a free version without ads or in-app purchases, and a premium version with more levels.
Close to the original, challengeing, fun for weeks: https://play.google.com/store/apps/details?id=com.szorenyiadam.android.arkanoidx