Cool

Maybe I'm being petty, but I never like seeing stuff that was clearly made for smartphones on here.

Looks fun but disappointing! The animation is lazy and give me a headache. Why are there two modes when they are exactly the same? Why not make one of them a tutorial.

Now we're talking. I liked this game much better than your previous one. It's certainly more enjoyable to play. Again, I appreciate you took the time to add more things on top, such as the shop with power-ups and the unlockable characters (it'd be cool if each of them had something different in terms of gameplay, e.g. an ability – like a magnet for coins, temporary shield etc.).

There's a slight issue with the camera, though. Presumably, it's a child of the player, so when the player skips a bit forward, the camera does too. This unexpected "skip" can be confusing and cause you to run into a spike. It'd take some fiddling with its (or the player's) position, but I'd try to make the camera move at a constant speed.
As for the coins, it's a pity that there's no "collecting" sound as that's the major thing you do in the game. And since you keep track of the gold you own even between different playthroughs, I'd display the whole sum of coins you own in-game instead of only your current attempt.
It might make the game seem more "sci-fi" and consistent to remove the blood from the spike (In-universe, how big of a chance is it that somebody got killed on every single spike you encounter?). Speaking of graphics, there are sometimes gaps of various sizes in between the blocks you run on (their positions aren't precise) and the "play" and "home" buttons on the game over popup are too blurry (probably resized too much).
The pause button and the bottom bar being cut in half is probably caused by choosing a wrong vertical resolution in Project System (it's the resolution of your game + the size of the footer, unless you choose the Minimal WebGL template).

Interesting concept, though it needs more to it.