I like the idea of the game, but there are some issues, Firstly, if the block falls, there is no way of restarting the game, maybe a respawn would be nice, the only way to play again was by closing the window and running the game again, and Second there is no top barrier, so you can spam "Left click" and the block will fly away into the unknown.

Other than that, well done!

As said in another comment, I think the button presses need finer tuning. As well as resetting the game. Otherwise a very nice attempt and submission.

A good attempt at making a hyper-casual single control game. Decent visuals and responsive controls contribute to a nice little experience.

I think one of the key problems is that the controls are like having a lead foot whilst driving. Pressing the key longer than half a second causes the block to fly offscreen, so some tweaking to how the blocks movement would go a long way to making the player experience better. Secondly, there is no consequence to flying off the top of the screen and the fail condition just makes the block stop and you have to hard reset the game. An end condition would really help this game out as well as an upper boundary. Consider how you export the game, is there a better way you could have done so?

All in all, a good little game that just needs some tweaking to the user experience and end conditions to be a great first submission.