This game is REALLY good and would work very well on phones. Excellent control design. As a small critique, I think it would be a lot better if it got harder, faster (like with spikes on the roof for example). Great work. After about 8 minutes of play, I found myself in a very long play session and my attention wandered. I lost the intensity that roguelikes tend to have. If you continue to work on this game, varied levels with different game mechanics introduced would be a huge plus. Great work. You should be very happy with this design.