Evergarden By: Flippfly, LLC Flippfly, the makers of the heart-pumping reflex-based flyer, Race the Sun, are back with a new game where they're trying their hands at a more relaxed genre -- puzzles. Their latest endeavor, Evergarden, is an endless merging game that's mostly about the high score, but also about the journey there. Merging games aren't anything new to the App Store, but they usually come in the form of free…