Zzed 

Space waste management may not sound like the most exciting carrier in the universe, but Zzed had to take the job to be able to marry his lovely green alien sweetheart. At the time, he did not know that his boss was the most corrupted extraterrestrial west of Sirius. And when he found out, he got sent away to the farthest corners of his galaxy, where he was sure to get crushed by space garbage. Will he die? ItZzed is an exciting arcade game where you play as an alien and your objective is to destroy space junk before it reaches your spaceship. The app gives you access to detailed gameplay instructions, provides you with dozens of challenging levels, and automatically saves your progress.

You can create as many player profiles as you like, play in fullscreen or windowed mode, and easily adjust the sound effects and music levels. Furthermore, the app lets you access the built-in help guide at any time you like, even while completing a challenge.

All space junk is colorful (green, yellow, blue, etc.). Your goal is to destroy all space garbage. You can do that by matching 3 or more pieces of space junk of the same color. Once all space garbage has been cleared, the challenge is complete and you move to the next mission.

To be honest, I can't find a single bad thing to say about this game. It's addictive, comes with easy to comprehend rules, and offers you countless challenges.

With that being said, you should give Zzed a try if you're looking for a simple game to play while you're on a break from work.