To be honest, there are dozens of games like this out there. Not only on newgrounds, but you'll see mouse maze games absolutely everywhere you look. It's over done, and you can play one of these games and never have to play another, because they're all the same.
Occasionally, there will come along someone who improves the idea of staying within the boundaries of the maze and making it to the end. I've seen this done, don't quite remember how, but it has been improved in the past. But nowadays, I see people stretching a over done idea past the point of no return.
Look, it's not your fault. If you would have come up with the entire concept of this game, you would have received awards, you would have been praised for your innovations. But the thing is, you didn't make this concept, nor did you make it something different when compared to other mouse maze games.
Think of something new, you're capable of creating something original, that people will find addictive and innovative. Don't give up, because again, this is in no way your fault. You amongst many others have tried to stretch out this concept, but let it die. Use your time and skills more wisely to create something better.