Are there any instructions? I wasn't able to figure out how to play the game.

The simon says part of the game doesn't seem to accept my answer. It highlights the same key in green, but then just says round over and sends me to the angry birds section. This might have been better if the two sections had anything to do with one another.

Okay. It took me a while to understand how to play it properly, but I finally managed to beat the first two levels.
I'm french, and I didn't know that the English equivalent of "Jacques a dit" was "Simon says", I learned something haha (probably took me much more time than others to get the idea because of that). Whatever. I think your game really needs some more instructions. Maybe a small tutorial or a new description here on the game page.
It's also sad that there is no visible link between the Simon says and the artillery game. I first though that a victory in Simon says was allowing an extra chance in the next step or something like that, but looks like it's not: whether you win or lose the first part, the artillery game still play the same way.