We know about that issue, it can happen when you press too quickly the shoot button. Other things may cause this, but this is the main problem we encounter. Try to hold down the shoot button longer.
If that doesn't solve the issue, you can use the Backspace key to reset a bunch of variables in the game. This may cause some other issues though, we mainly used it to debug the game.
If there's any other issue, I may make a patch to solve the problem.
It's a really sensible subject when it comes to Nintendo IPs. We can't work on it and expect to not be flagged down by them. It's a little school project and probably won't go further than that in that form.
Thanks for the comment and the video! You managed to break the game at the beginning (Not much, but still. You can see our let's play video to compare the first area.) Hope you liked it and had fun with it for the time it lasted!
