In what way does your game fit the theme?
Rewind an internet fiber optic cable to deliver internet packets to video call users.

In Internet: Rewind, you control an internet delivery-bird that juggles the vigorous internet demands of several video conferences simultaneously. Delivery packets of internet data as fast as possible before the time runs out---the slower you deliver packets, the slower your users' video calls. Deliver as many packets before the timer runs out! To help you, portals let you teleport to places quicker through the internet metaverse, but your delivery bird is attached to a fiber optic internet cable that limits the amount of teleportation. REWIND this cable to increase your internet teleportation abilities and enhance the internet!

Play with WASD, space/shift to fly up/down.
Full controller support: left and right thumbsticks.

WEBGL version: https://irylan.itch.io/internet-rewind-webgl

Did you write most of the code yourself and made all the assets from scratch?
Yes. Assets, code, and audio.