Nice one man! I made it to the level with the two buttons; couldn't figure out what to do.
Are you talking about level 8? That one is definitely very hard. But, if you are talking about the first buttons level, I recommend you pay close attention to the hint given at the beginning of the level.
Thanks for playing! I am glad you enjoyed it.
I was talking about level 5. I've now had a little look at the levels after that, and they are all really hard as well to honest.