This app was mentioned in 7 comments, with an average of 2.57 upvotes
I believe it is called War Agent
I used to play it but it looks a little different from what I remember, might have been updated a bunch since I played years ago.
War Agent: https://play.google.com/store/apps/details?id=com.bazinuinc.waragent&hl=en
Primarily its all about profiting from selling as many weapons to the 2 opposing countries as possible with neither side wanting to surrender nor having an advantage over the other. Pixel graphics, but exceptional audio that sets the tone of war very well.
Blackmoor: https://play.google.com/store/apps/details?id=com.mooffgames.blackmoor
Its been a while, but its a beat em up with relatively "playable" controls. You can only play as 2 characters...one plays like Simon Belmont on Steroids and the other plays like an average Beats of Rage protagonist.....I think, but you can unlock more through gold. The equipment system lets you use a multitude of weapons all with different attacks. I don't know how it is now but its a solid game from my experience.
Mini Mix Mayhem: https://play.google.com/store/apps/details?id=com.brokenbeta.minimixmayhem
Its something of a simple minigame multitask warioware thingamabob where the challenge goes to completing as many games correctly as fast as possible. The difficulty increases quick to the point where you can "Fill a vial of acid on a test tube with your accelerometer while saving the galaxy on a rocket propelled ship while getting a flappy bird helicopter to safety". It also has single screen multiplayer.
I'd recommend One Finger Death Punch if they didn't completely obliterate the Endless Survival Mode.
War Agent | 4.1 rating | Free | 100,000+ downloads | Search manually
> A war between two nations is imminent. There is opportunity to make profit out of the incoming war. War Agent is a high score, fast paced resource management game that puts the player in the place ...
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