I like this game. I think the early parts are too derivative, but the gameplay gradually gets more original, until it's pretty fun and it's possible to play without the constant reminders of Cave Story et al. The dialogue and plot remain too much like a cheap pastiche of Earthbound/Mother 3, though.
(The beginning is really painfully CS-clone-like. The general aesthetic, the protagonist's design, his gun, the background that doesn't move as fast as the foreground, the spinning notebook for saving, etc.)