Chikyu Kaiho Gun ZAS

Interesting vertical shooter on the Gameboy. While quite short, it can be quite difficult especially on later levels that have you flying through thin tunnelled parts while being shot at. The game also features some nice music. As far as I can tell, it was also a Japanese only release.

On 2 levels, the game uses screen flipping to give a parallax type effect by flipping two scrolling backgrounds at a different rate giving the illusion of more detail then you would usually see in a Gameboy title. On the original hardware exploiting the slow refreshing lcd screen was a great way to add some extra bling without a significant performance cost but with emulation and our instant refreshing screens the effect is a very annoying flicker effect making the game very difficult to play.

I have provided a blended video merging the flickering screens to make the video much easier to watch. An artefact of the blending is a slightly blurred video but it is infinitely more watchable than without it. The original full framerate version is available to download as well via the Part 2 link should you want to try it and maybe try with some different blending filters.