>>718210318
>>you play as a large ship but actually your hitbox is just one arbitrary pixel
Clarity of hitboxes is the only problem. Other than that, shmups are a far more honest genre than most other action games, which rely on input buffers and animation cancelling to feel good, lying to player about his manual performance, or most RPGs that rig the RNG in player's favor, again lying to the player for a smoother experience, and make number calculations opaque. These are good lies, but they are not honest.