This level is inspired by Danmaku (Curtain fire) games that I play very often (where you have to dodge LOTS of bullets) and one stage from VVVVVV - Gravitron. The original level "Gravitron" is unplayable because of heavy lag. So, here is second version.

Level name: Danmaku Gravitron
Description: A pretty easy survival level. Dodge saws and rockets until you can safely get the bandage girl. You need to survive approximately for 15 seconds then reach the bandage girl.
Screenshot:

About lava: use waypoints with lava "obstacle"

By the way a useful hint (at least for me): holding CTRL while sizing light does it at 50 intervals instead of 1. Real time saver for huge lights.

1. Is it possible somehow to set properties of lots of objects at the same time?
// Is it just me or when i select all objects and change their properties, only 1 changes?
Ex: I have 250 lasers from hell and i want to make them all silent.

2. Is it just me or it does not copies properties of objects with Ctrl-C,V?

3. (Not needed until solved 2) How to align copied objects to grid? (` does not work)

the actual problem is: when typing in upload name all keys are handled as shortcuts too

Just set "Time on" to 9999 and "Time off" to 0
After 9999 seconds it will go off for 0 seconds and then back on for 9999  

how about a way that doesn't hurt my ears

and on top of that it doesn't even run when I do that

Just set Time mod to 0.00 and Start time to 0.10

I have completed my level, then exported it. For some reason it exports with one extra light, that is really annoying.

Level name is "laser danmaku"

Any ideas?

The screenshot of the bug: http://habreffect.ru/files/4b7/f716551a0/ladbg.jpg

Just set "Time on" to 9999 and "Time off" to 0
After 9999 seconds it will go off for 0 seconds and then back on for 9999