Originally Posted by
CJC
ZoriaRPG, I believe the first collision triggers Link's "invulnerability" phase, so the second fireball strikes and does nothing because Link is temporarily invincible.
EDIT: Since the projectiles on screen are indexed just like enemies, that would mean the first fireball created gets to do damage, then invulnerability is triggered and the second fireball does nothing. This is the same as hitting a bubble to evade an enemy attack--the 0 damage hit triggers invulnerability provided it has a lower index than the enemy attack (on a one frame double collision).