1. Dodongos need to play "Boss is Hit" SFX when they die if the header is 2.10 and below (essentially with no enemy editor)
2. This behavior does need to be double-checked, but as far as I know Mirrorobes only took 3 hits to kill in 1.92 Betas, then got boosted in 2.10. If the header is 1.92 (something), then they should take 3 hits to kill.
Cheers!
-James