Ughh…
The game honestly started pretty well, has neat art and I thought it was going to be good, but the ending is VERY frustrating.
For starters, you can't collect the coins, only food items. And there's no music or sounds.
I was also going to say the pendulum perhaps damages you too little (a big metal ball hits you in the face and consumes only like a fourth or fifth of your life) – likewise the spikes, but you're going to need all the health you've got left for the ending.
Near the end, it drops a hint in Russian – therefore indecipherable for all but a small minority of players – about falling platforms. It would still be alright because you could figure it out by experimenting – but the platforms fall instantly, not giving you a chance to react; and they also look just like regular platforms. If you fall through, you land on a bed of spikes. It doesn't kill you instantly, making it look like you could still jump out or move away, but you can't. It just very quickly drains all your health.
And if you memorize the right way across the bridge, you'll meet a "green blob" enemy which can likewise kill you almost instantly. It will also follow you and even jump to get you (before it gets stuck at the last crate or killed by the guard if you lure it out). Impressive AI, but you don't expect it and therefore after you finish a frustrating trial-and-error bridge, you'll get killed by a green blob.
Now it probably should be mentioned that even though death is common and almost inevitable, at least a couple of times, there's no checkpoint (!) and the game doesn't even restart when you die (!!!), forcing you to reload the page to try again.
I "finished" the game after roughly ten times because I wanted to see if the ending is worth it… well, the ending is ‘Walk to the edge of the screen and fall off’. Isn't that nice.
Honestly, it could be a good game. It has different mechanics, is quite fun at the beginning, but the unreasonable last part (with very unsatisfying ending on top of that) tarnishes the whole experience. Add checkpoints, invincibility frames if you want but most definitely *restarting the game* and an *ending screen*.