this is great man! Definitely one of my favorites so far!

And I still feel sorry for the one time I failed Mr Blob :( 

I'm not sure if my brain eventually adjusted to the switching mechanic or I just bruteforced my way through the entire game, lol. It was fun and pleasant to play and I haven't encountered any issues. Many congratulations on finishing and having it look so cohesive! :)

I saved the little MR. BLOP!)) Love your idea, same problem here, the player stuck in collsision when i am one pixel not far from Wall. But loved it very much nice idea! Keep going!

This is a really fun idea. The pixel art and music are pretty cute, the game has a really cozy personality, depsite the rough nokia 3310 restrictions.  However, I found the game to be a little bit frustrating in some places. Sometimes the character would stop proceeding, because of a wall that was just turned on behind him and there was a little bit of going back and forward. 
It's a great idea, it just needs a little bit refining.

Cool concept, but I found the slime to be a bit slow at times. Like when he is walking across a long platform. Maybe you could add a button to speed up the movement? The slime also got stuck at one point in the wall and he didn't turn around. Maybe a reset button would be good, unless there is one I didn't see. Otherwise, great game!

Great concept. Cute, simple and addictive, although I found it maybe a little too difficult

What a great idea! Simple but works so well, well done!

I love Mr Blob!
The Second level was a little challenging but i got it after a while.

It's pretty hard but i like it.

Nice game. Required quick reactions and pixel-perfect adjustments which made it challenging (in a good way).

Awesome vertical game! Actually quite challenging imo, which I think is a good thing.

I killed poor Mr. Blob more times than I care to admit!

This was a neat mechanic. I wish there were more" puzzle-y" based challenges and less reaction speed challenges.

Fun little game!

Cool use of the theme, and interesting choice to make it portrait! Good level of challenge overall. Nicely done!

Cute little game - the separate buttons for on/off is a little confusing.

Challenging and interesting idea. Sometimes the character gets caught on the walls when you switch them on, which is hard to avoid since some of the gaps are pretty small, but overall well done!

Man, this was tricky! But fun and engaging. I wish I had one extra life for those tricky spots where you need to time the switch exactly.
Well done :)

Nicely done. This is quick to grasp and easy to get into but quite hard to master! I think the collision detection needs a little work, or possibly the level design could have fewer places where you have to be very accurate or else you get stuck in a platform, but these are fairly minor gripes. (I did once get stuck permanently and there's no way to resolve that, when I think I fell downwards while in contact with a permanent wall.) I even like the minimalist music. This is good fun, and surprisingly difficult for a simple-seeming concept!

This game is really interesting, I'd wish for it to only use a single button to control, and also I got stuck in level and couldn't restart

Very enjoyable. Love the look and style of it.  Just a great game.