This was very nostalgic! I love the 4-bit color aesthetic (I'm a bit biased as my game takes a similar style). The controls were tight and responded well! There's one or two levels where the controls felt a bit janky but otherwise it was straightforward. The gravity could be adjusted to give more of a window for timing the height for some puzzles. Additionally the resetting could be streamlined by adding a button to insta-reset. Having to go through a menu was a bit grating. Also! Just as a comment for if you update: there should be a way to show the player that the block they generate can't block the eye's gaze.
Overall, I loved the playthrough! Keep developing!