possible bug: bullets of enemies that shot in 3 lines (forgot the name) are affected by multidimentional baby
on the longest run i had got for now, using a build with multidimentionall babies on front, when certain enemy shot, it's bullets was affected by the multidimentional baby, meaning that those bullets duped, causing a lot of damage, just 2 of those guys were enough to literally erase most of the board.
Doctor Hummer knows about this and decided to leave it in as an anti-synergy of sorts. In the future, maybe place defensive units of some kind in front of the multidimensional babies. Or maybe just not include multidimensional baby at all if the preview of the monsters shows that those shooting guys will show up.