Hey!
You killed me with an heart attack! You know exactly at what point! Don't you?
What I liked about the game:
You have built a very nice narrative there without using words and (almost no) text. I like that very much. Seeing the helicopter crashed only after walking some feet, the story unfolds as I am now aware that the character must have crash-landed here. Not being able to climb the high mountains in the west, it is possible to climb those in the east tho, and then the adventure begins ... (and leads to a heart attack!! ;) ). I like that the reward of mastering the game is surviving in the end.
I like how this story is told by minimalistic use of UI and characters. Thumbs up.
What I could remark or wish for:
Resizing the game in the browser makes it remarkably better to play, so a hint about that would be nice in the description, like "Best played in full screen".
The climbing animation does not play if you do not press left or right together with up, but the character is climbing nonetheless.
I would have loved if the stamina number and the health bar would instead be more subtle, like stamina is shown by the character sweating and breathing more heavy with small clouds before stopping, and health being more a visual aspect of the character. But I know that some other players would say exactly the opposite here, so this is just my personal taste.
I missed some --- some ... sound, like a cold wind blowing in the back and the padding on snow outside. Maybe some dripping with echo in the cave and steps on stone or wood there.
A respawn point mechanic would be nice. It took me many attempts to progress and I always had to climb again and wait to come to a certain point. Maybe a small respawn point in the cave after the first 3 times dying ^^
Also: The game has some opportunities for easter eggs like a picture of you or your name written on a tombstone or skeleton or sth. ^^ to reward players that climb at points where they are not supposed to.
Oh! And the lower wooden .. bridge (?) to the left in the second chamber has some pitfalls. Some of the blocks are not colliding there. The two above the left most wood columns and the one directly right to the 3rd one.
Overall:
I like it and I would like to see more of the story unfold. Obviously the scoreboard mechanic is not in there, but the game is good as it is!
Keep it up!
Send me a message if you ever extend the story :)