Alien Dream is an Html5 platformer with GBC-like visuals and zero own ideas. Who needs 'em anyway.
If you have a recent enough browser, no building is needed, but it is recommended to run ./tools/dist.sh, which uses Closure compiler (included in the tools folder) to compile the code to a single file.
Here: https://jani-nykanen.itch.io/alien-dream
(c) 2020 Jani Nykänen