* AntiClimaxBoss: The Final Boss, Tatsuriki, both slower and possesses less firepower than the previous two bosses. Additionally, it moves very predictably and slowly and lacks the capacity to hit much of the screen at one time, making it a sitting duck for the manual "Beam" shots.
* GameBreaker: The manual-target explosive blasts could decimate bosses and {{Giant Mook}}s in seconds, AND defend you from projectiles. It takes some practice to master it, though.
* ThatOneLevel: Any level with asteroids/rocks, ESPECIALLY brown ones. All rocks explode into shrapnel when destroyed, and the shrapnel can do a lot of damage.