I could see this idea turning into a pretty tricky puzzler with different key colors and doors that they go with - and then having to open them in the right order to get through.

I found it strange that winning came down to a random choice delayed by levels that were impossible to fail.

+1 to what @tcarter said.

Reminiscent of Chip's Challenge. The music is kind of haunting and catchy. Obviously needs different colors of key and lock combinations to really make for an interesting game.

Certainly need improvements and challenges, but i got the idea. Like bugninja said, this could be a nice puzzle game in the near future.

I can see how this concept could develop into something cool, but it really bugged me that suddenly became a random draw.

It was a nice concept but none of the levels before the last one could be lost and the final level was completely random.
I can see the idea though. Keep it up!

What?! start this game from the top every time when I choose the wrong lock is not enjoyable )
however, that's great entry!