Very well done! How do i start? I gave you a fairly high rating in most of the categories, since i think your game is really well done. It seems quite polished, has nice pixel graphics (which i like most!) and the coin collecting sound is soooo satisfying. And this is good, since i like to have a good feeling when i play. This is where i think most that a game is worth to play. When i resonate with a good feel.
I want to emphasize the sprites of the protagonist and the coins. There very detailed and i judge this to very well chosen, since both are the main sprites for the game; while it's perfectly functional, that the background and ground is quite simple in comparison.

Off to your core idea: I like your concept regarding the theme a lot. Fake coins are quite innovative i think, in a game, where you are supposed to collect everything shiny ... and fast! :)

But, and here comes my personal criticism: Your great idea kills the gamefeel and fun for me. There is a timer and i should be fast, there is this nice and simple level, where i can imagine how i am going to fly through and have fun jumping and reacting. And then: I go a bit, then stop, then look hard: left spin? right spin? err ... get ....next....stop, look, think....avoid! ..jump ... then stop again...and look. This feels tensed. Playing it "right" is no fun at all. It's literally a platform crawl ...

So the next time i just ignored your fake coin idea. I rushed through, collected everything, had a nice mixture of good and bad coin collecting sounds, jumped like crazy, moved fast, back and forth and when i got ALL the coins, i smiled and felt well: THIS was so much fun. And i appreciate you for the same end screen with "next time avoid the fake coins", which i can easily disregard and add to myself: "yeah. or i don't and just have fun with your game". :-)

So what i want to say: Your game IS well made AND fun. Your fake coin idea is still promising and a very good one, i judge. I just ask myself, how could you implement it, without necessarily slowing the game down so much. I see, that you could memorize the fake coins and then make a speed run through your level. But then it would be a memory plattformer, not a "distinguish between fake and real" one. 

I have one suggestion, a kind of compromise: Maybe DO make the fake coins easily recognizable. But only for a short time. Like every coin is the same, but the fake ones have a glitching animation for some seconds. So if you get near one and the coin glitches, you don't have to look hard, but you instantly know this one is fake and you can frantically try to avoid it. Maybe this would help to still be fast in playing and being in a fun flow, without stopping everytime. You could even stand still for some seconds in the beginning and trying to memorize the glitching ones. This would be easier, but since the glitching occurs from time to time and for some seconds a fake coin looks like a real one there would still be some kind of difficulty involved, challenging your memory: "Wait. this one was real, wasn't it? oh, glitch! (frantically hitting JUMP)" Maybe this idea doesn't really address the platform crawl problem in the end, but maybe it can be another impulse of making the game fun AND staying true to your concept.

This said, i want to be honest, and state, that i don't play speed running platformer games at all and i see, that speed running such games is often very much about memorizing, so ... well. :)

I love the concept of the coins having different spin, it made me look hard at the screen. Would love to see more!

cool game i like the graphics rated it please rate my game too

good game¨

please rate my game too

Cool game idea! I enjoyed playing the game! When I played it first, it seemed like I have collected all the coins but the game didn't end until I collected the fake ones as well... (Maybe I just thought it was rotating left but it was rotating right...) It is an interesting game!

This was fantastic! I enjoyed the subtlety what is and is not real and I really had to focus to try and discern what I should and should not collect. The artwork looked fantastic and the sfx really gave it that feel of a coin collector! The game runs super well and feels very polished! Great work!

Fun idea. I thought it was annoying that you immediately jumped again if you accidentally held the up key down just a little too long, but otherwise pretty fun!

Nice, unique take on the theme and I liked the art too.  Focusing on those coins to figure out which way they were spinning reminded me of figuring out enantiomers in organic chemistry. :) Great work!

Neat concept, although trying to tell the difference between the coins feels hard with the only difference being how they rotate. But something like this could be a cool concept for a speedrunning game to show where the player should go.

Fun game. The thing I was missing most was music I think (which I can understand is very hard to add - especially if your doing everything by yourself).

The level design was nice because there were clear points where you had to make a choice. (e.g. at the beginning, where you choose between the top or bottom coins in the four columns)

Would you mind reviewing my game?

Really cool concept ! That's a nice twist on how to distinguish what is real and what is not ^^ ! You should have explained it in-game instead of in the description, it would have been more clear =p ! But otherwise, that's a really good entry, congratulations ^^ !

The game is good, it looks like it could be a nice game to speed run, the animations and graphics are really great. I think you should have a way to identify fake coins, otherwise it's luck based or memory not finding them. But for the time we had everything looks clean.

Fun game. Watching these coins spinning can make you a bit dizzy tho XD. 

Maybe the character can acquire a tool that makes them able to tell the difference between fake and real coins (with the fake ones having a different color or texture for example).

I like the character design, good work!

Fun short little game. Good job getting your feet wet with making games again! I managed to collect all the real coins, but I did collect 3 fakes aswell. It can be tricky to tell which are fake from the spinning animations, but I liked how some of the way the level is designed helps you disambiguate which coins are fake!