Hotfix based on your reports. Thank you for playing and reporting!

Iron Bird (starter aircraft)

Charge shot now behaves like a screen-clearing bomb for newcomers: Lv1 fires instantly on tap, Lv2 after 0.5 s, Lv3 after 1.0 s (was 0.6 / 1.2 / 1.8 s). Other aircraft are unchanged.
Fixes

The mini HP bar under your aircraft was drawn far below the ship and stretched across half the screen, and drained toward the middle. It now sits directly under the aircraft, matches its width, and shrinks from right to left.
The mini HP bar now uses the same look as the HUD gauge: red fill, black track with cyan outline, and a white shield segment that extends the bar when shield exceeds max HP.
Hornet: drones could be left frozen on screen after a charge-shot recall (for example when the target died mid-recall, or after docking at the Hangar). Stray drones now return to the swarm.
Continuing a run saved during Act 0 (tutorial) showed the Act 1 background while the tutorial replayed. The background now stays on Act 0 until you reach the node map.
Music: guarded against the title track overlapping the stage track when moving into a run.
No enemy balance changes in this patch.