The default gamepad controls offer the option of either using the tilt of the thumbstick to aim, or moving a cursor with the thumbstick. I found that the first of these felt best between them, but ultimately chose to make a custom control scheme using the right trackpad as a mouse-region. Unfortunately the game automatically switches to gamepad input and ignores keyboard and mouse inputs if any gamepad inputs are detected, which necessitated recreating the gamepad control scheme as keyboard inputs in the Steam input settings. This has proven worth the trouble though, in my opinion cursor based aiming like this feels much more versatile the more chaotic levels.

When there's a lot of enemies onscreen, the game can struggle and drop to ~20 FPS (from its base 30).