At first I didn't have any idea what to do and I thought that the game just crashed on load since I couldn't see my character or the rock (they were off-screen). But I kept trying and eventually pressed the arrow keys beginning my journey! I like the idea of having new abilities with each loop, and it surprised me when I picked up Rock! I just couldn't figure out what pressing 'c' did :(. Still, good job on your first "properly coded" game!
FYI, I get this error message constantly in the web console:
"ERROR: Error calling from signal 'body_exited' to callable: 'CharacterBody2D::_on_area_2d_body_exited': Cannot convert argument 1 from Object to Object.
at: emit_signalp"