Defender ZX is an arcade-like shooting game with simple gameplay that revolves around shooting blue blocks. Yes, it is a remake of the deleted game impossible breakout, but it's not just the exact same game with a different coat of paint.
construct.net/en/free-online-games/defender-zx-41731/play
Develop games in your browser. Powerful, performant & highly capable.
More fun than Impossible Breakout (which I did find impossible).