I have played it till the end! To prove that: the last boss was the woman (agent?).
I had no sound then. Now there is sound. I don't know if this was my fault, maybe I had my browser muted. Sorry about that!
But... tough gameplay? No way, sorry. As said: it was fun. But sure no challenge.
I know: Feedback can be hard. I really not want to hurt you! Just help. Take the feedback friendly and improve yourself. Honest feedback is important since you can not improve otherwise! I guess you're still very young and I don't want to hinder your development, so take advantage of this small compliment: despite of all critics - IT WAS FUN!