In the Android game of Grow, there is such a thing as a free lunch. You've just gotta watch your back if you want to survive.
Starting out as a tiny fish egg in a jar, you must eat all of the smaller life around you, while steering clear of anything that's bigger than you. If you take care, you'll slowly start to turn into a fish, and your environment will begin to change. Stay strong until the end, and you'll find yourself at the top of the food chain.
While there do seem to be a lot of these fish-eat-fish kind of apps, Grow stands on its own as a well-made, unforgettable game.
Because the stakes are always changing, the game stays interesting, no matter how long you play: Your environment becomes more vast and more dangerous, predators become larger, and you're constantly being introduced to clever new power-ups. This game has two different gameplay modes and tons of different levels, which means that Grow has a lot of replay value.
This app has a very cute and unique art style, but don't let that fool you — Grow becomes more challenging with each passing level. Thankfully, the on-screen joystick controls are easy to use and accurate.
My one key issue with Grow was that it took some time to find in the Android Market. It was buried beneath a heap of apps related to marijuana, gardening systems and games like Hungry Shark and Crazy Chicken. I realize this is probably an issue with the marketplace, not related to the app at all, but it's still an issue that's important to point out: The fact that this gem could be easily overlooked is a bit unsettling.