Thank you! The precision falling is the heart of the dive, so I’m really glad that clicked.
You also caught two things I’m actively working on. For the boss, the trick is patience: dodge its dives and the standard tires itself out, and when its heart is bared and beating, that’s your moment to strike. A patch after voting makes that read much clearer and gives you more room when it charges.
The aspect ratio fix is already done for that same patch too, fullscreen will hold the tall well shape instead of stretching.
Also, thanks for sharing the details of your game creation and having to follow the 2600 constraints.