soooo ummm , i got an idea for a JM brain buster , and i kinda want you to add it ,
its called sabia madness :
you apparear in a conveyor belt lvl with jm plants (excluding Ps and including premiums) and you have to survive the lvl BUT there are dinosaurs in sabia(savia?) once you destroy them like tombstones they will be double as faster using their abilities also if you complete the lvl without destroying any sabia(savia???) of dinosaurs (no grapeshot :( ) you get an achievement called : No pancakes today!