Seems like another one of those games with a few colors and swappable palettes.

‘Down Ward’ does that too: https://www.kickstarter.com/projects/fisholith/down-ward-owl... (or would do if it was funded—not sure of its fate).

Oooh, now that I've seen it I like Downwell. To me it has a distinct "Speccy" vibe to it. It's not just pixel art, it looks like a ZX Spectrum game!