Bizarro∙Sephiroth's statistics depend on how many parties the player may use. Statistics shown are Bizarro∙Sephiroth's base stats and maximum possible stats in brackets (see table for breakdown). Abilities whose names are not shown when used are highlighted in italics. The party cannot escape.
The statistics vary based on various things the party has done before the fight commences. Bizarro∙Sephiroth's base stats are listed in the table, valid for the one party battle and the main battles for two or three parties.
The party should be at least Level 50 for this. Bizarro∙Sephiroth's limbs can use powerful magic, but they have low HP. A few casts of Ultima, or a summon or two of one of the Bahamut summons, can destroy them, leaving only the core and the body. Once alone, the body will often heal itself for upwards of 6,000 energy with Bizarro Energy, so the damage the party inflicts should be more than 6000. It can also attack the party with Stigma and a single party member with Sephiroth Shock, but both of these attacks are not too strong.
Use Big Guard, and Regen or Cure 3 to heal while attacking the body. The head will regenerate, but it can be killed again easily. As long as the player kills off Right Magic and Left Magic, Bizarro∙Sephiroth is not too difficult to beat. When killed, the party fights Safer∙Sephiroth.
Alternatively, Core can be killed instantly using the Enemy Skill, Roulette, which it is not protected against, instantly ending the fight with a win, though it is a risky gamble.
Another easy way to end it is to use Ultimate End. The attack should hit all five targets quite easily. Make sure you haven't wasted this attack on earlier foes.
The way you fight Bizarro∙Sephiroth will change depending on your actions in the previous battle against Jenova∙SYNTHESIS, your average party level and whether or not you have obtained Yuffie and Vincent. When certain criteria is met, the game will ask you to select either one, two or three parties (one set of three, two sets of three, or two sets of three and one set of two) to fight Bizarro∙Sephiroth with.
To qualify for a one party situation, one of the following conditions must be met:
Jenova∙SYNTHESIS achieved 13 turns or more before the Ultima countdown is activated.
The lowest leveled character the player party possesses is level 34 or lower. This does not count Aeris, and does not count Yuffie and Vincent if the player has not obtained them.
The average party level is level 53 or less. This does not count Aeris, nor does it count Yuffie or Vincent if they are not obtained.
To qualify for a two party situation, the player must not qualify for a one party situation (see above). In addition, one of the following conditions must be met:
Either Yuffie, Vincent, or both are not obtained.
The lowest leveled character the player party possesses is level 44 or lower. This does not count Aeris.
The average party level is level 67 or lower. This does not count Aeris.
To qualify for a three party situation, the player must not qualify for one or two party situations. Specifically, all of the following conditions must be met:
Both Yuffie and Vincent are obtained.
Jenova∙SYNTHESIS achieved 12 turns or less before the Ultima countdown is activated.
The lowest leveled character the player possesses is level 45 or higher. This does not count Aeris.
The average party level is level 68 or higher. This does not count Aeris.
When dealing with two or three parties and switching between them in battle, the HP values of all of the Parts are saved for that particular party only. For example, in a two-party situation, the Head Part can have different values of HP for each party.
The single party version of Bizarro∙Sephiroth is the easiest, as he has the lowest amount of HP for all of his parts. The two party version requires a different strategy as the two parties must defeat both the Left Magic and Right Magic parts of Bizarro∙Sephiroth before the Core is vulnerable. The three-party version requires more strategy between each party as the primary goal is to defeat two of the sub-Cores so the main-Core is vulnerable to attacks. Thus, the parties surrounding the main party (Cloud's party) must defeat the Left and Right Magic Part to make their relative sub-Core vulnerable. After this is achieved, Cloud's party can attack the main Core and finish the battle.
Birth of a God (神の誕生, Kami no Tanjou) is the fifteenth track of the fourth disc from the Final Fantasy VII Soundtrack. It refers to the penultimate battle theme of Final Fantasy VII, played during the battle with Bizarro∙Sephiroth. Sephiroth's de jure theme "Those Chosen by the Planet" is mixed into this piece.