Thanks! Yes ut definitely gets easier the more you play it but as soon as your concentration drops it is over.
I will have a look at the things you mentioned. The walls are so close for difficulty reasons but maybe they should close in in time and start a bit wider for more success in the beginning.
Originally the colors were not mixed up and it was super easy. As soon as I played one round with mixed up colors I knew that would be the trick to make it hard.
:)