Probably the reason the Start Pos. didn't work is because you were playing in SP. This event is like having multiple warp targets all with the same ID - when you warp it will go to each warp target starting in the top left, and running right and down in order. If you place mult. Start Pos over a level in multiplayer, when you die you will go to different places. How do you think they have you start off in different positions after you die in Diamondus Warzone or Battle1?

About the Jazz boss being created by "combining" Devan Robot Boss and Tweedle, find a new name =P. The original "Jazz Boss" is an MCE I created where the boss is, basically, every sprite of Jazz, and it acts like the Devan boss. Besides, if the boss doesn't even do anything, how is that a boss?

I know that the Empty options for a bunch of those events have a purpose, and it really helps that that's all I can say about it. Buh.

You also didn't include TNT Powerup for a "discovered" unknown. When you place it in a level it has the same physical properties of a Crate/Box but is invisible, though I know you can destroy it and 'power up' TNT.

The Sync property for events was never a mystery. And besides, I'm pretty sure the numbers available for it are more than 3. 5, perhaps?

Word. Buh.