not bad, solid concept, lacking in visuals but you could make an upcycled update of this where you lead a pack of lemmings or something. could make it an incremental with collectables, upgrades and skins. if you feel particular daring you could make a story mode.. uwu

Dont like it.
Controls are pretty bad,the gravity is bricks so like half the jumps need the crap out of the momentum,if 1 block hits red,every block dies,no menu,no sounds,x to jump is pretty dumb and unoriginal(being based on console games that can be played on PC),and the only thing you can do is jump.

Create a Main menu atleast.. Update it slowly set goals so first create a menu state with a How to state and an Options State.. in the Options maybe add a way to change the jump key.. Cause my first choice when trying to jump was 'W' or 'Up Arrow' or 'Spacebar' .. Everybody has there own preferences.. I Seen a good idea in the comments which is to remove every square thats hit till the last one is destroyed it would make the game a bit more fun to the player.. You could have also added a decent description to the game instead of just "Its fun" i'm not trying to be an ass , im just trying to help you get an idea on what the players would want..

First of all it needs a menu. Mabye in the menu you could add INSTRUCTIONS since I had to push all over my keyboard just to find out jump is "x". Also what you could put in the menu is a leaderboard perhaps. After the menu you should mabye put some 8-bit music or something and have sounds happen when you jump. Also it should be for every obstical you pass you get a point. Also if you could mabye make the game a bit bigger it seems very small on the screen right now. Other then that the game is like geometry dash except with 3 boxes making it harder. Mabye make the menu and add sound effects and the game wont be that bad.

One for each bit, never got to far, (platforms) but what I saw was a nice concept with the timing varying for each bit, maybe make it a loose the bits that are hit system instead of a one hit death.