Thank you for your comments and feedback. Each game lasts no more than 2 minutes (the walls reach the collapse point at 70 seconds, I think, and gathering orbs makes the game lasts a little longer). Yep, I think I could make it a little more dynamic, but my coding knowledge it´s still low and I waste a lot of time in set the main mechanics hehe. My idea was exactly what you are saying, but… ^^!