your not dumb. It is a web browser so you should just be able to click Run Game and wait. If not I'm sorry it wont work
oh, i found the problem: play in browser games don't show up in the itch.io app.
tried it out, for your first jam game it is good, BUT why on earth dead aliens kill you if you touch them? Jump could be shorter, but with less gravity. Otherwise good game
I made it so in real life if you touched an alien even when it’s dead it would probably still kill you
Thank you for the feedback