I think that there should be LBMB (life affecting bomb) only affects stickman and fighter Will someone make this as a mod please? :-)
As it is, it's probably a bit too specialised. it would make more sense to make it a bit more useful by making it turn all LIFE-type elements, PLNT, STKM, STK2, VIRS, YEST and FIGH into something inert like DYST; which wou;d be a lot cooler especially if it made a shockwave-type thing around the pixel. It'd also be good for getting rid of a VIRS infection quickly.
[A word of caution: calling a thread "New Ideas" makes people think it'll be a crappy post. Make it more descriptive, like LBMB(Life Bomb) or NBMB(Neutron Bomb)]