Probably one of the worst concepts I've seen so far in a fangame, executed in one of the worst possible ways. Basically, you have a time limit of 500 seconds to beat the whole game, which includes three screens of triggers and traps, and an avoidance at the end. When you die, you can't press R to try again. Instead, you have to wait for around 5 seconds, then you'll respawn automatically. It's a kind of punishment, and it gets annoying really quickly.
The platforming is filled with generic, annoying traps. Some of them are quite precise, and you can't die too many times overall because you need to save as much time as possible for the avoidance. The avoidance is mostly easy, but the hard attacks are all near the end, and they take a while to learn. But you can't take your time to learn, because you only have a few attempts before the time runs out and you have to start the whole game again. And again. And again. The avoidance is already uninteresting by itself, but in this game, it becomes even worse.
Once you beat the game, you can go back to the beginning of the game, this time with no timer, and now you have to collect four secrets scattered through the game. Most secrets aren't very hard to find, but every single of them is a disaster of annoying traps, and the last one can trick you into using a Save that you shouldn't use before you get the secret. Then, you have to fight against a buffed and more annoying version of the avoidance. If you miss even a single secret, you have to go back to the beginning and get the remaining secret, and, of course, you have to beat the buffed avoidance yet once again. Amazing.
It's a massive disaster. Highly not recommended.
The avoidance is also long and requires some learning, so you will most likely need to restart this game more than once.
Would NOT recommend, only if you are doing the K2 Savage Mountain Challenge.