Could you allow TDExplosives to have a choice of having a fuse or not so we could make ninja stars?

Also a ability of a TDExplosive to be sharp?

for the first thing just make the triggerdelay = -1
and the second would to just make it have a high sharpness

I looked at all the TDExplosive variables and it didn't have sharpness

To make it go through land, try making the restitution a negative value.

Sure it's unstable, but it's still fun.