Pretty cool.
But, like it says in the tags for some reason, what's with the GOL?

You should make the erase button be the red wall stuff instead of a button you have to spark because that means that you don't have to get the spark and spark it and then change back to what you were using to draw with until you can draw again

@SupremeSamurai

SupremeSamurai:

@jalfor
Then you'll have to erase the element in the detector so there's not much point...

Not if you use the 'absorbs particle' wall.

@SupremeSamurai
Tell them to use non-solids then.