Mozilla like runner for js13k 2018.
https://romualdk.github.io/games/2018/mozilla-runner/
(press Z to jump, X to shoot)
It's more like mockup but I wish I could make it to the end ;-).
"Players" by me ;-)
"Blowhard 2 Blow Harder" by surt https://opengameart.org/content/blowhard-2-blow-harder
"Seasonal Platformer Tiles" by GrafxKid https://opengameart.org/content/seasonal-platformer-tiles