Very nice, very polished and really well paced. Kept offering new things as you go. Great job.
SPOILERS:
If it's true that I missed a mega secret ending and there are really 10 levels, then I wish there was a level select or a way to retry without having to go back through the prior levels.
If it's a lie that I missed a mega secret ending, congratulations, you absolutely pranked me. On the other hand, it took me about 2 full minutes to realise that (interesting that I assumed the 'level count' was somehow immune from the 'lies' theme), and I admit it made my experience with the ending a negative one, since I assumed there was a problem with the game.