An here is version where my 5 year old son remixed the spritesheet. And you can fire kind of bullets. We might submit this to kidsjam https://itch.io/jam/kidsjam

Untitled

by ztiromoritz

Cart #35009 | 2017-01-05 | Code ▽ | Embed ▽ | No License

Hey Moritz, @DesignInVan here, thanks for sharing

Have fun with it.
I'm not so lucky especially with mixing up the x and y coords. (x in pixel y in lanes)

But I had a lot of fun working together with my 5 year old on it. Here is our kidsjam entry: https://itch.io/jam/kidsjam/rate/110296