It is a good idea and I found it easy to understand.

This is a cool concept for a game. I like the simplicity in the art style, although perhaps making each block  different pastel colours would help differentiate each one.

Personally I find it difficult to get past even the second wave. Increasing the time/ space between obstacles would make this game much more enjoyable. You could slowly shorten the distance over time to gradually increase the difficulty as the game goes on.

However, a nice concept! Well done.

A very nice idea for a game but i have to agree with others. The first person visuals makes it quite hard to get the timings, it took a long time for me to work out which way the blocks moved when hitting space bar but once i got it i did a lot better.

Some sound effects or music would be nice as well as a scoring system!

Overall great job.

I love this concept, and the gameplay is nice and responsive. The turning is quite ambiguous as to which side you move, so it takes a bit of playing around with to understand that you move to the right. I think making the turn animation a little slower and adding different colours to the blocks will make this easier to convey. As a first person game, it can be difficult to judge when to turn, as you don't know quite when you've gone past the block to the right of you.

Great concept and the controls work nicely, the suggestions I do have are mostly focused on the visuals.

Having the player be functionally in first person makes it a bit difficult to gauge exactly when you'll collide with the blocks, so I would recommend having a player character slightly in front of the camera on the tracks. Also with the blocks all being the same colour it can be challenging to differentiate which layer each upcoming block is on, especially from a distance, so I would recommend having the blocks alternate between different colours to help set them apart.

Great job!