Breath of Fire I/YMMV


 * Game Breaker:
 * Ryu's Dragon Forms fell into this category. The first 3 forms weren't so bad, but beyond that his dragon forms gave you the power to hit every enemy unit for more damage than most members of your party could hope to do to one, save perhaps with Bleu's high-end spells...which cost more to cast each turn than the one time you have to pay for Ryu's transformations. Oh, and if his HP hits 0? He transforms back to normal at full HP, ready to transform right back into that form good as new all over again.
 * The Agni transformation makes the game incredibly easy. Merging the whole party into a single being, max HP, an attack that does 999 damage, and status immunity would do the trick. Have a few Cures (or Melons), and you can beat the game easily.
 * Mrbl1. A cheap, easily obtained item that guarantees Critical Hits; these also work on Ryu's dragon attacks too. Carry entire stacks of these around, and bosses die much faster. Well, until you get Agni...
 * Mrbl3 just as much, if not more so. No random encounters. AT ALL. And these things are available dirt cheap in the very first shop. You're still going to need to do some Level Grinding to get past the bosses, but you'll at least be able to reach them with your party at 100%.
 * Karn's fusion forms are similar. He combines with two or three other party members for a major stat boost. He'll always go first and will deal more damage than anybody except Ryu's dragon forms and Bleu's magic. Unlike Ryu's dragon forms, Karn's fusions aren't limited to one fight, so unless you need a map ability, there's little reason not to have him fused.
 * White magic always moves first in a battle, unless it is an attack spell like Zom1. Nina becomes completely invaluable in any boss battle as a result.
 * The (Boomer)Rang weapons. Combine them with Mrbl1 items (a cheap, easily obtained item that guarantees Critical Hits), and you will wipe the floor with the entire enemy group with just Ryu.
 * "Seinfeld" Is Unfunny: One of the earliest JRPGs to hit America, so it was bound to become this.
 * That One Boss / "Wake-Up Call" Boss: The Gremlin. He has a ton of HP and will start spamming a powerful group-hitting attack when his initial health bar runs out (at which point his HP is only about 1/4 to 1/3 of the way gone).
 * That One Level: Most of the surreal dungeons on Mote's dreamworld, the crystal-path maze being specially loathed.