Lots of updates, all culminating in one post:

Spawning mechanics: At set intervals, waves of arrows are programmed to spawn in. Additionally, the size, speed and behaviour of the arrows change as time goes on.

Second level in progress: With level one done, the next one is planned to introduce new mechanics and a shield?

Stamina bar: A skill ceiling element in the game, this feature prevents mindless spamming and encourages well timed hits.

A focal point background: I made this background so it directs attention the the player, increasing focus and engagement without clutter.

Death, victory screens: GUI elements….

Finally, I made new arrow variants: Small, Towering, Speedy and Timed.