Surprisingly hard. A good test of your skills.

I remember space invaders on the Atari. You have captured the game perfectly! Well done!

Thanks.

Watch out for them. Maybe they are here. Thanks for picture.

Thanks for nostalgia.

Super fun! Makes me want to play the game.

Was expecting to find some ambiguous squares at the end, but nope, the puzzle is 100% logical. Fabulous image. Thank you!