This game starts out very fun as the challenge stays pretty consistent. Steal 1/2-3/4 of stuff, upgrade team, then only the most powerful gun unlocked, then raise alarm time. Always do side missions just before boss for most value. Always watch ad after each level because the double reward is more than completing the level and the game seems to force an ad more often than not so you might as well ensure the bonus. Then you’ll realize after only a couple days, hey I’ve beaten this city. I’ve played this level. Done exact bonus mission, again, and again. My suggestions: needs at least 2x cities and levels. Once completed unlock a tiered mode of increasing difficulty. Vary up enemy types or have way to get special effect guns, like a shotgun/shield breaker or a stunner. Currently, no matter teams or weapon strength the big guys still kill in 2 hits. Fun for a couple weeks until everything unlocked and maxed out.