Very easy to cheat
I see what you were going for here, and you executed it decently. I mean, yeah, you can cheat really easily, but I can still see where you put a decent amount of work into making these mazes interesting and progressive. However, if you ask me, I think they lack any color variation. I mean, black and blue for the WHOLE game? Really?? Seems to get old kinda fast if you ask me.
Personally, I'd make every level different colors, or maybe every few levels to at least make the game interesting to look at. That and maybe some other things to look at to make the mazes look pretty. Hell, even some background music while going through the mazes would be a nice addition, as this game has no sounds at all.
Just some constructive criticism for you. Not trying to sound harsh, this is a great start, I just wanna make sure you have your work cut out for you next time =) Keep up the good work.