Interesting twist on the "only one shot" idea. Have to agree with tesselode though: That the controls are limited to 8-ways even when using a controller is a bit disappointing. :( Also the game currently is very easy: enemies are rather passive and you can simply stand behind a corner and kill them one by one. Would have preferred more aggressive foes that force you into moving. But even then, the game suffers from a big problem: while moving the needle around is a lot of fun, shooting it it straight is the most reliable way to hit enemies. Even though that's boring. Bonus points for using Godot!
My game: https://njamster.itch.io/wonkey (playable in browser, not mobile friendly)