This is traced back to the game's origins. Ghost Song started out, roughly a year ago, as a flash game. I wanted to make a Metroid-like because Nintendo wasn't doing it (The last 2D Metroid game was Zero Mission, in 2003).
Since that time, the game has grown tremendously in scope and I've come up with a lot of ideas and mechanics that were never in any Metroid game. The purpose of this Kickstarter is to move the game to the next level. This means we'll have higher res art, tons of new graphics, and everything will generally look better. We'll also be making some small changes to some details around the margins to give it a bit of its own character and feel, and tuning up the gameplay mechanics a little.
If you like how the game looks now, have no fear, the final product will be similar. Just bigger and better and decidedly "its own animal".