Unless you are doing this strictly as a hobby without the intention of ever going to market, this Developer Upgrade is absolutely needed, and odds are you've checked out the additional features available thorugh the upgrade and are almost ready to spring for it. It's really worth the additional cost. This powerful program is my new go-to for rapid development of 2D cross-platform apps through final deployment. The in-program tutorials are somewhat difficult to follow and would be aided by video counterparts (starting at Chocoblast Lesson 11 - but never fear, video turorials are abundant online via other websites), but some quick online searches will help you put together the missing pieces (face it - if you really want to develop a game beyond the hobby level you'll need to enhance your own personal troubleshooting skills anyway, so don't let the getting-up-to-speed tutorial issues bother you). It's a great, helpful, active community that I'm excited to be a part of.