Yes - Rare Metalmorph only protects the monster from spells that target. Ojama Delta Hurricane!! does not target, so will destroy the monster.
No.
No.
No, Rare Metalmorph does not satisfy the summon conditions. There is a difference in saying "Metalmorph" and "a Metalmorph card", in that the former means a card called, and only called Metalmorph, while the second wording will mean any card with Metalmorph in the name. You see the first kind of wording on things like Dark Magic Curtain, since it says Dark Magician and not Dark Magician card, it can only summon a regular Dark Magician, and not, say, Dark Magician Girl. You see the second kind on Six Samurai monsters, their effects work with any other card with Six Samurai in their name. Red-Eyes Black Metal Dragon requires the Red-Eyes to be equipped with Metalmorph, and only the regular Metalmorph will do.
Your TF2 may appear rainbowy because you have an item equipped on to one of your characters, such as the Pyrovision Goggles, which activates Pyrovision. To disable it, remove the item that activates pyrovision from your loadout.
Yes, Equip Spell Cards cannot exist on the field without their target. If the target leaves the field, the Equip Spell Card will be destroyed and go to the graveyard.
Handcuffs Dragon returns to the field in two ways. - If it is not equipped - if it destroyed by battle, it can become an S/T card equipped to the monster it destroyed. - If it is equipped - if the equipped monster is destroyed and Handcuffs Dragon sent to the graveyard, then it can Special Summon itself. So if it is not Equipped, it cannot special summon itself, only come back as an S/T card if destroyed in battle. If it's acting as an Equip card, it can only special summon itself, it can't re-equip itself to something immediately.
It mean that to trigger, they had to be sent to the graveyard while they were equipping a monster. That means if they were discarded from hand, or destroyed while face down, or destroyed because the equipped monster was turned face-down or was removed from the field, then they will not get their effect. But if it was equipped to a monster, and an effect destroyed it (or destroyed it and the monster simultaneously) then that effect will be applied.
then all cards on the field are destroyed unless the union monster has an effect that says that it can be destroyed instead of the equipped monster
soitsu is used to be equipped with doitsu, which gives it 2500 attack points and doitsu would be destroyed instead of soitsu if they were to be destroyed.
Flint is sent to the graveyard
Relinquished's equipped monster is destroyed if Relinquished's ATK is lower than the foe's attacking monster's ATK. If Relinquished is in Defense position, its equipped monster is destroyed if its DEF is less than the attacking monster's ATK. Either way, Relinquished remains on the field.
No, Equip Cards simply 'fall off' when the monster they are equipped to is destroyed. They do not go to the graveyard, they are now just unattached.