Gravity Well by Xietanu is an action game made for the PICO-1K Jam 2022.
The game features an infinite gravity tunnel, where you move around horizontally using ‘arrow’ keys to avoid oncoming blocks. Falling close to obstacles increases your heartrate as indicated by amplitude of the the pulse in the bottom right. As you fall, you’ll get faster and obstacles will get more frequent. Use ‘dodge’ (Z) to hastily move out of the way (recharges after use) and use ‘dive’ (X) to accelerate faster down for more points and more danger.