gaahhhh can't beat this one level so frustrating I think you need some key macros with some massive abuse :'(
HOLY SHIT I BEAT IT AFTER 1 HOUR HOLY SHIIIIIIIIIIIIIIIIIITTTTTTTTTTTTTTT
1) make probiotic block
2) collect 10 from inside
3) break the block (remove a blue square at the edge)
4) re-built the probiotic block
5) ... ???
pro tip 2:
you can make any gun sumer haxxx if you add a wall to the tip of it. For instance, say you have the long range gun as follows:
(B = blue, Y=yellow, x = empty)
you can upgrade it as follows
just attach a wall, i.e.
to any corner of any gun they'll go bananas xD