the jan 13 update did not fix the above cheese and bugs. in case you couldn't understand, it is rot13.
I don't understand the changes to lv2 or lv16. lv5 is better, lv18 is worse (more obvious), lv19 is worse (less elegant), lv20 is better (much harder)
more bugs: you can still push a falling block (imo falling blocks should not be pushable). you can shoot the side or bottom of a falling yellow block (it should vanish as soon as you shoot, and therefore not be shootable). I think you should not be able to shoot while pushing, that seems to cause several problems.