I used Rive.app to animate this bad boy on eyuelzero.com... The original animation was done on Adobe After Effects so I had to redo the whole thing. I gotta say that Rive makes it super easy to manage different aspects of the character's movements using different timelines. Then the state machine can merge them all together. My techy ass loved playing with this.

For now, here's just the eyes animation isolated for extra creepiness 😄👀