I really like the concept and I enjoyed playing it :) I couldn't get past level 4 either, maybe it's broken? This would be the perfect sort of puzzle game for mobile!
Hi Artefact. The level 4 work properly, you need stop the two water stream, is great see you enjoy game and yes, the game was thinking for play in mobile or web. The development is stopped because I am busy in other projects, maybe in the future return to develop this.
Thanks for the feedback