We should probably attempt to catalogue how to get all of the CGs. Just hit 50% in my game.
Row 1:
Trigger the normal death scene while clothed
As above, shredded clothing
As above, naked
UNKNOWN
UNKNOWN
Get shredded by the Tentacle Bush
Row 2:
Get bitten to death by the toothy red nipper plant with a long neck
Get poked to death by our old friend (For those who played the original), that plant with the stabby feelers
Get burnt to death by those fire lizards
Get strangled to death by a snake
Get choked to death by a jellyfish
UNKNOWN
Row 3:
Get swallowed by a slime and die from it
Get grabbed by one of the giants in Act 3 and get stomach punched to death
Get killed by the damage dealt after get one of those tentacle worm thingies to 100% affection
Die in the mouth of the monster that's several rows of teeth
Get torn apart by the giant earwig-like monsters after the timed boss battle
Die in the stomach of the dream monster
Row 4:
UNKNOWN
Die to the man-eating plant in act 1
Let the weird plant chimera thingy eat you and die from it
UNKNOWN
UNKNOWN
Die in the mouth of the green guy with the knife
Row 5:
After escaping the dream world, let the bug rape you to death
Get punished for harrassing the water elemental(?) woman by not bringing her the requested item three times after she gives you the sukimiuzu
UNKNOWN
UNKNOWN
Die to the slash attacks from the shadow enemy after the water section following the water elemental woman's place
After getting past the second annoying water section, you'll encounter that green clothed bitch whose pet you killed earlier. Die to her branch grab attack.
Row 6:
Die during the timed boss battle
Let the giant rock boss at the end of act 1 kill you while he chases you
Let the giant rock boss kill you while you're trying to kill him after the chase
Let the rock boss kill you when he comes back at the end of act 3
Our friend, again. After climbing to the top of that tree or whatever it is with the help of the birds, die while fighting him.
UNKNOWN
Feel free to word them better or fill in missing ones. I can try to go into better detail as to the location of enemies if necessary as well.