Jump and fly your little bird up a series of floating platforms to collect coins and berries. Avoid spikes. Use the coins and berries to upgrade your bird, until all upgrades and in-game achievements are reached. As you unlock achievements, decorations appear in your bird's bare room.  It takes about an hour to get all the achievements/upgrades - if you're smart about the way you do it. In short, this game is maybe best for younger kids less likely to metagame and more likely to enjoy the simple play style. Things I liked:  There were no bugs to be seen, the childish doodle-style art is cute, and besides buying hats for your bird you have the ability to choose the colors for different body parts as well. Things I didn't like: Even with all upgrades, the room is still very bare (space for more achievements in future builds, maybe?), there isn't any background music other than a couple very short tunes that play right when you start or end a "flight" session + there are no sound effects for UI interactions (upon starting the game I thought the sound was broken, turns out there just isn't any), and the biggest issue, which I alluded to earlier, is that I found it's much easier to 100% the game playing it "wrong." This is what I mean: You need berries to upgrade your bird, but berries fall randomly from the top of the screen. Rather than jumping around on platforms hoping to catch one, just... stay on the ground and run along the bottom collecting the berries as they go by, without worrying about falling or hitting spikes. The screen doesn't roll up with time, so there's no inherent need to jump up to stay in the game. Your bird starts very slow, but after a few speed upgrades you can zip along the bottom and rake in about 10 berries a "flight." Once you're completely upgraded, go ahead and zoom around on higher levels collecting coins for the achievements and hat unlocks. As for the highest flight achievement - it's actually stupendously simple. The spike platforms that you need to avoid will never ever spawn touching the sides of your screen. Ever. So just pick a side and fly up it as fast as you can, slowing down only when your energy is low so you can scout a safe platform to land on. Recharge and repeat until you have the achievement. Your only risk is the falling "thorn berries" which theoretically may fall on your head while attempting this, but in my experience it's less likely than you'd think.