There is a lot of elements missing from this game and quite a few issues..lets start:

Medals broken...completed the first level and i didn't get my medal.

second stage scrolls vertically WAY to slow it was painful as most of the time i was waiting for the stage to scroll.

Cannot shoot diagonally...i can only shoot in 4 directions..should be 8...i should also be able to lay down in a prone position and shoot at the floor level

flame thrower.. is broken, i cannot jump forward and shoot at the same time...

this game is just lacking so much...unlimited ammo? why not have it so that you can cycle through your weapons and the only weapon that should have unlimited ammo is the starting pistol.

the movement feels sticky, when i stop pressing forward i stop immediately..it makes it very artificial.

you pretty much stole all the sound effects and sprite designs from a wide variety of games..everything from ..megaman to sonic..

why is the starting pistol rapid fire? rapid fire should be a weapon pick up..

this game would have been awesome.......in the 90's...but now its very out of date, and while you can still make great old school games, you need to implement the standard features that are in games....like customization, or the ability to upgrade SOMETHING weather it be health, fire power,

Ok this was good until I got to stage two. Use the same bosses much? Different look, same properties, not cool. It was ridiculously hard, most of the time it did not feel fair. I mean a boss fight at the end of each level? It was crazy hard, but ok. If bosses were used more sparingly, instead of every dang level, this would be good. As it is is was frustrating.

Nice game BUT the controls are a joke if you ask me. Why not use space for jumping and left mouse button for fire???

why i do i not get medals?

While the graphics and programming are nice, there are some other factors you haven't considered (in a run n' gun). It's supposed to be easier to hit your enemies than your enemies hitting you, here, the enemies have too much hp and they're weapons have more range/harder to dodge. Like the thing that sprays grenades everywhere on a raised platform, it's annoying to jump up and down to trade 1 hit for 2 hits on yourself. Same goes for the main, flying enemies, I can't hit them from the ground very well. Of course, the other obvious problem is the lag, thank you for thinking about the standalone, surprising, it lags a lot but is very not detailed, like the map and platforms are very simple and sparse...guess it's all in the old school art. I also find the power-ups pointless...I don't see a difference. I gave up when it came to the moving platform while breaking boxes part, the enemies are even harder to hit and the box have way too much health, I always fall off and take a lot of damage before I break the box, but by then, the moving platform is long gone and all I could do is fall until I die.