History GameBreaker / ShinMegamiTensei

*** That’s only scratching the surface of the sheer game breaker of pierce and melee in general combine deathbound and pierce with ares aid(critical rate up 50%)and phys jump(physical damage up 1.5X) either one cracks up the damage a lot(especially ares aid) but both allows you to kill most day 7 bosses in one turn if you have full health(you have mediarama for that) even if most demons can only inherent 2 passive skills your psychical based character should alone should be enough to wipe out most of the boss health so that a physical demon can finish it off.

** Another nastily abusable technique in Strange Journey is how its reflection equation works; In most SMT games, a reflected spell will deal damage to the target it reflects onto as though the target had cast the spell on itself, including elemental resistances. In this game, however, the damage is directly equal to the amount it would have done to the target of the spell. In simpler terms, this meant that should you get a very low level demon with Reflect X abilities it would deal extremely heavy damage to enemies that were higher level and would thus have done stupidly high damage to them. For example, the final boss has a combined HP of 16,300 (7,300 for the first plus 9,000 for the last) and having a team consisting entirely of specialized demons of around level 10 could easily reflect around 5000 damage every turn she chose to use an elemental attack. It's not a fail safe strategy, due to the existence of Almighty element moves, but it's definitely strong enough to wreck most enemies in the game with almost no trouble. However, the time it takes to actually fuse such monsters is much more than many people would care to take, so most would probably just play the game normally.

* The level up trick with the pringles is also a good way to have a high level. Unfortunately, there's a cap for EXP. However, you could still keep on rolling money. Let it summon its mooks, turn on Rush Mode overnight and wake up with a lot of exp (at 65k normally, 130k with both equipments (each increasing your exp by 50%)) ''and a million worth of cash'' that you could use on a NewGamePlus (you know, to summon your broken personae listed above). Though as for the [[GuideDangIt two equipments...]]

* The level up trick with the pringles is also a good way to have a high level. Unfortunately, there's a cap for EXP. However, you could still keep on rolling money. Let it summon its mooks, turn on Rush Mode overnight and wake up with a lot of exp (at 65k normally, 130k with both equipments (each increasing your exp by 50%)). Though as for the [[GuideDangIt two equipments...]]

* Fusion in general can get you some hilarious results in either ''{{Persona3}}'' or ''[[{{Persona4}} 4]]''. Skill inheritance can get you a persona with all 3 full-party autobuff skills by mid-game. Most encounters won't survive 3 turns of physical attacks if a player uses debuffs as well.

* ''ShinMegamiTenseiIMAGINE'' has Erosion Hex, a skill that can hit [[StandardStatusEffects paralyze, poison, amnesia]] and [[TakenForGranite stone]] all at the same time, and has a huge area of effect. When combined with the soulstones of Mothman and Catoblepas, this skill can make everything not immune to mystic/amnesia and death/stone easy targets. This skill has such low requirements to be learned that nearly every build in the game can incorporate it with minimal effort.
** Magic Bullets have the Enchanting Bullet Hole, which has a base 40% chance of hitting charm. Then there's the nekomata soulstone that raises that chance by 50%. And then there are dozens of different ways to get the 10% remaining to have 100% charm. Considering Magic Bullet skills ''completely ignore enemy resistances'' for calculating ailment chances, anything that doesn't null mind/charm ''will'' become charmed when shoot it with this.

** The skill giving item. Oh gosh the skill giving item. Simmilar to UpdatedRerelease of Persona3 this allows you to give skills to your demon, except your option in this game is limited to some exclusive moves instead of almost every moves in the game. The catch ? one of these items that is alvailable pretty early gives you 8 randomly hitting move that is alvailable to pretty much every demon in the game with fairly strong base power and sometime extra effect. This basicaly renders every other move barring healing move completely obsolete since you can spam this move to win any kind of fight. Combine with the fusion system above and even the BonusBoss wont last more than one round.

** Focus: Raises the damage of the next physical attack by around +150%, and can be learned as early as lv23. It's not hard at all to hit 4 digits as early as against [[BonusBoss Matador]], or 5 digits later in the game due to this.

* The Null Attack skill from DigitalDevilSaga nulls ''everything'' except Almighty attacks. This makes you effectively invincible for 90% of the game as only the last two dungeons have random encounters that make use of almighty attacks and none of the storyline bosses (except for the last boss) use almighty as their main form of attack. It won't help you against the bonus bosses though since they just love their powerful unique almighty attacks and the [[spoiler:Demi-Fiend]] will rip you to shreds on his first turn if you dare to have immunities equipped.
** Also, Cocytus on the first game. It's a random-hit ice spell that has an ''absurdly high'' rate of inflicting the Freeze status, which ''makes the target lose all their resistances and turns any physical attack on them into a CriticalHit''. Also, if it hits a same target twice, it deals more damage than Bufudyne, the top tier ice spell. Slap Ice Boost and/or Ice Amp, and the game will be a walk in the park for the most part. It's especially useful against the BossInMookClothing Arahabaki enemy, which repels everything but Ice (which it's weak to). It was nerfed on the second game, though.

** Focus: Raises the damage of the next physical attack by around +150%, and can be learned as early as lv23. Combine it with Freikugel (mentioned above), and you have a skill that can 1-hit pretty much any random encounter enemy (Aciel is the only random encounter with enough HP to resist this, and only if you have less than ~35 strength), and kill any boss in 1 to 4 hits (''including the BonusBoss'', given enough preparation).

* The Null Attack skill from DigitalDevilSaga nulls ''everything'' except Almighty attacks. This makes you effectively invincible for 90% of the game as only the last two dungeons have random encounters that make use of almighty attacks and none of the storyline bosses use almighty as their main form of attack. It won't help you against the bonus bosses though since they just love their powerful unique almighty attacks and the [[spoiler:Demi-Fiend]] will rip you to shreds on his first turn if you dare to have immunities equipped.

* ''Portable'' Also brings the MC's ultimate persona: Orpheus Telos. This palette swap of your original persona is clearly specifically designed for the BonusBoss because it resists everything but Almighty and Poison (The BonusBoss will automatically kill you if your persona absorbs or repels any of her attacks, so resist is the best possible option) and has great stats. The only spell that it learns naturally is Victory Cry, but most importantly, it can inherit ''every skill in the game.'' If you plan everything out right, you can have a single persona with the eight best attacks in the game. Mix and match to your hearts content to decide what eight skill combination is right for you. The catch? He can inherit ''every skill in the game,'' not just the best ones, and because it has an equal likelihood to inherit every skill, you'll spend hours wading through combinations with inferior skills, hoping for that one-in-a-million perfect combination that you just spent a few hours setting up. Of course, this is all assuming that you maxed out every social link in the game, have the necessary fusion fodder, and are above level 90; the requirements for being able to fuse Orpheus Telos.

** Daisoujou. Immune to every status ailment in the book in some way, has good Magic stat, and can restore its own HP and MP during boss fights with Meditation, which makes him a stellar support caster if you give him Prayer, especially if you sacrifice demons to level him up.

* ''Portable'' Also brings the MC's ultimate persona: Orpheus Telos. This palette swap of your original persona is clearly specifically designed for the BonusBoss because it resists everything but Almighty and Poison (The BonusBoss will automatically kill you if your persona absorbs or repels any of her attacks, so resist is the best possible option) and has great stats. The only spell that it learns naturally is Victory Cry, but most importantly, it can inherit ''every skill in the game.'' If you plan everything out right, you can have a single persona with the eight best attacks in the game. Mix and match to your hearts content to decide what eight skill combination is right for you. The catch? He can inherit ''every skill in the game,'' not just the best ones, and because it has an equal likelihood to inherit every skill, you'll spend hours wading through combinations with inferior skills, hoping for that one-in-a-million perfect combination that you just spend hours setting up. Of course, this is all assuming that you maxed out every social link in the game, a requirement for being able to fuse Orpheus Telos.

* ShinMegamiTenseiStrangeJourney has Victory Cry + Jihad (or any powerful Almighty-type spell) on a demon. The Eternal Rest spell in conjunction with any sleep spell is also effective, as status ailments work quite often on a surprising amount of enemies, and the combo can lead to a near DiscOneNuke if you get it early enough.

* In DevilSurvivor, some skill combinations certainly count. Most notable, however, is Drain. It does Almighty damage (which means that 99.9% of enemies can't resist, null, deflect, or absorb it), is surprisingly damaging, and robs the enemy of their HP and MP while replenishing yours.

**** In ''DevilSurvivor2'' higher level Dragons get Evil Flow. One usage of this buffs your attack range to 6, allowing the player to attack anything shy of a few bosses with complete impunity.

** Then there's Fog Breath, which drops every enemy's accuracy and evasion by 2 stages, and it can't be blocked. Did I mention you can get this at level 21?

* In ShinMegamiTenseiII, it's damage and defense buffs and debuffs, which stack with themselves and last until they are dispelled, something that not every boss is capable of. But more-so is the Divine Retribution spell. It tears off a quarter of of an enemy's health with an alignment opposite to to the spell's caster, and it works on bosses with no reduction.

* In Nocturne: Recarmdra, with proper exploiting and fusion, you can create an infinite cycle of healing or one powerful mage. When the HP/MP of your party is low, have that demon use Recarmdra, Blammo; your party gets back all their HP and MP, next have another demon use Samrecarm to resurrect it, and summon it again. Mana Drain also is useful, give it to a powerful magic user and let them do all the damage dealing; it is even better if they know Megido class magic.
** Daisoujou is the real Game breaker though as Meditation costs little and drains enough to refill his MP, give him Prayer and he can also act as a healer.

* Practically any game that has Mana Drain or Recarmdra, with proper exploiting and fusion, you can create an infinite cycle of healing or one powerful mage. When the HP/MP of your party is low, have that demon use Recarmdra, Blammo; your party gets back all their HP and MP, next have another demon use Samrecarm to resurrect it, and summon it again. Mana Drain also is useful, give it to a powerful magic user and let them do all the damage dealing; it is even better if they know Megido class magic.

* Avians have Flight, which allows the team to teleport to their destination and ignore obstacles, boundaries, and enemy-occupied spaces in distance calculations. This gains a lot of utility in the Belberith battle--normally, you have to use switches to enable a couple elevators so you can reach him, but with an Avian you can simply just fly across the pit without ever touching the switches.

* Avians have Flight, which allows the player to teleport to their destination and ignore obstacles, boundaries, and enemy-occupied spaces in distance calculations. This gains a lot of utility in the Belberith battle--normally, you have to use switches to enable a couple elevators so you can reach him, but with an Avian you can simply just fly across the pit without ever touching the switches.