* ClicheStorm - But a good one.
* DemonicSpiders - Pretty much all of the [[RandomEncounters random]] airship battles except the first handful fall into this category, as they're GoddamnBats when you're fully kitted-out with the best equipment you can get for that point in the plot, and if you've just started out in that specific area? Expect [[BossInMookClothing quite a few surprise Game Overs]]. It doesn't help that the later-game ones also [[MarathonBoss have more HP than many of the game's bosses]]...
* GameBreaker - Eddie's Overdrive and Combo Attack skills are gained near the very beginning, and can annihilate bosses in just a few rounds even quite a ways into the game. By the time it stops being as effective on bosses, you've gained your [[CombinationAttack plot-unlocked ultimate attacks]].