I got stuck inside the ground later on, but up until then, i loved the mechanic you chose (typing) I'm a fast typer, but i imagine some people arent, maybe difficulty settings would be good.
Typing the sentence while it's deleting itself while on a timer was a bit stressful on the eyes, Maybe let you read it first? Or that might go against your vision for the project. Either way, 5-star innovation and it fits the theme well! Good job