No, it is not considered a Summon. Therefore, the effects of cards such as Golem Sentry are not activated as it requires the card to be FLIP SUMMONED. However, it is considered to be "flipped" meaning that Flip Effect Monsters' effects are activated when successfully attacked.
A tribute summon is a form of Normal Summon. So that means you can only tribute summon OR normal summon ONCE per turn.
yes you can
Yes, it does have to be in your hand.
Yes, in the yugioh card game you can advance summon (this is also called tribute summon or sacrifice summoning).
force
A monster flipped face-up by a card effect, such as "Book of Taiyou" or "Stop Defense", or as a result of battle is notconsidered a Flip Summon. Only flipping a Set monster manually is considered a Flip Summon.So if you attack a face-down Stealth Bird, it will be flipped but not Flip Summoned, so its effect will not activate.
the answer is yes you can. unless the flip summoned monster's effect destroys it or prevents attacking. You can only attack if you flipped in Main Phase 1, you can't after your battle phase
Summon it in a duel
Double Summon allows you to have an extra Normal Summon. This Normal Summon is no different to your usual once-per turn Normal Summon. If you've got two monsters to tribute, then sure, you can tribute them for an 8-star monster.
yes. in the official Yu-Gi-Oh! rulebook, it states that you can only normal summon once per turn, but you can special summon as many times as you can per turn.
There are many action replay codes which can be used in the Pokemon games. There however, is not an action replay code to summon monsters without paying tribute in Yugioh World Championship for 2008.
The only time you can do this is if you are tributing the monster for a tribute summon, or sending them for some kind of special summon, like for Destiny Hero Plasma or a Synchro Summon. But if you wanted to summon another Lv4 monster, you cannot simply make room by sending a monster from the field to the graveyard, you can only do so by effect or game mechanic, like when it is destroyed by battle.