Aside from the obvious no audio issue there are plenty of things left to do..

• Gaps! I totally forgot about gaps between blocks which means I need to restructure the numbers and winning condition a bit, already have 0-32 as single characters in the font to fit it!
• Scrolling in a single direction? more variation!
• Change the backgrounds for puzzles
• Maybe the logo should wiggle about a bit too
• Any other issues that might be coming up as random people try it out :)

Let me know if you have any thoughts by the way! Or check out @spacemoguls on twitter :)