So sorry for that, I can't find a way to why the game can't be played in the browser, thank you for the feedback I thought it is my internet which is lugging, You can try the downloadable file for now :)
Glad to see you fixed the issue. The game looks nice and the inputs are responsive. I would tweek the jump a bit though. It's very difficult to platform and shoot when shooting off like a rocket. Also try to add some simple background music or ambient noise to the game.