hi, myk. i found your game at Latest games made with AppGameKit - itch.io and appreciate old school shooters like this. thanks for properly tagging the engine as i'm always happy to see more AGK goodness like this on itch!
that said, a 181mb web game is quite hefty and takes a while to load (so far i only see what should be a 5-10 mb game). but, i wanna play so waited and gave it a quick run or 2.
i like the style and visual thus far, along with the music/sound (which i believe is the culprit of such a massive download here. try using .ogg if you are not yet. and if the music is longer than a minute or 2, consider a shorter tune or 2 for a web game?), and play seems good, too.
i'm not convinced that some things are working quite as you'd like but it's a great start and has plenty of potential for fun so i'll be watching development!
and, i know this is your first game so if you have any questions, feel free to ask and i'll try to assist. if you are not on the AGK Discord Server, "soon" would be a good time to make that happen ;)
otherwise, a quick tip for AGK games on itch is to set the Viewport Height here high enough to allow the fullscreen link to remain visible once the game loads. as it is now, i lose that link and def want to play in fullscreen (i'm hooked to a 55" screen for a reason ;) ). that and maybe a few more tips can be found in a pdf available here.
finally, this AGK-only jam is running for another ~6 weeks; check it out and consider joining/committing to get your first game FINISHED by then? if it doesnt happen by the deadline, i dont mind. but, please do continue working on this, regardless :)