For one day of work, this is quite good. Still there are many things to improve: Smoother movement, soundtrack (really not my thing!), more content,...

Wow nice work for one day! For future updates, have a read of this twitter thread to get some ideas to improve the game feel https://twitter.com/MattThorson/status/1238338574220546049

Green man would be proud. 

Very green.  Could have gone on a little longer.

OMG! I mastered a platformer!!! In green!

Thanks!

(Please add an option to turn out the music)

I won.

Very simple, but quite impressive for one day of development! Shame it is so short.

Interesting idea with climbing and teleport, but the game is very short.

Also,  the mix of jump sound and the background song feels kinda weird

Love the Song in the Background, what is it called?