I'll be honest, I got skill checked. the fact that the yellow bullet hits you if it touches the ground at all instead of just bombing near it and the fact that it can be launched pretty fast in the opposite direction as you with no time to reach it to grab it means you are running on a timer to beat momiji. with the fact that red bullets lock onto you and that I couldnt consistently grab the yellow, while I got close a few times, I could not clear the game. It's too hard for me.
It looks like you were using some variant of scratch for your engine though, which is impressive on it's own right, but I could feel some of the limitations your engine gave you. Still, even with those limitations you did a lot, highly impressive for the engine. Good job