visually i like what you're doing, but it seems like it needs a lot of work. there were a lot of little plants and things that just made platforming irritating instead of challenging, and i assume the coins were supposed to do something (cus they didnt??)
the whole idea of the colorful backgrounds and dance music plus a basic run n gun platformer is cool, tho. maybe think about adding some more sparkles or random shiny achievements that make us feel special, too.
also i died at one point from an enemy and the game froze up instead of respawning me. if i only had a limited number of lives you should consider making that a little more clear because i see that you said "restart or dont die" or w/e but i definitely respawned multiple times before this happened.
also, i really think it's a good idea to allow for WASD and spacebar for shooting, cus most people do not have a keyboard where arrow keys and enter are comfortable settings.
this was fun, tho. i hope to see a more polished version soon

found this hard to control mostly due to lag and wasnt compelling enough to try and fix it. Sorry dude

cool music! i love the retro art style too. the controls are a bit awkward (why not have space for the firing option instead of enter?) and i don't understand why you have to restart the page to try again if you die, why not have checkpoints (or just an option to restart the game)? cool submission tho! if you fix these issues this game would be tons of fun :)