Nice game. Reminds me of the bullet hell arcade machines from the 90s.

However, there's nothing explaining the parameters needed to open the locked features.

Muito bom, com algumas atualizações vai ficar melhor ainda!

this should be re-uploaded with a English version or have an option in game to change to English not a bad game but also a little bit to easy for my first run

Yep, does not work

AFTER FIX:
It's okay shmup with ok graphics. I wish it could be translated to English. And small intro/tutorial would be nice.

BEFORE FIX:
Does not work.

It shows this error:

Downloading failed:
Downloaded a compressed file Proj_SkyKeeper-HTML5-Shipping.data.jsgz without the necessary HTTP response header "Content-Encoding: gzip" specified!
Please configure gzip compression on this asset on the web server to serve gzipped assets!