I have every one in the series so far (yellow red black blue green pink orange purple, yes I somehow memorised the order) and they are really fun! It’s challenging but not so hard you want to rip your hair out, and really fun overall. Finished them all after a few weeks, great pastime on school holidays. And no ads! Free! Entertaining! Everything good about a nice little puzzle game. Only thing I would have asked was for more levels, but it is a series so there will be in future. Thank you so much Bart Bonte for making these, I’ve also played all of your other free games. To anyone else reading this, great puzzle game, 10/10 recommend.

I've been playing his games since I was a child, and I needed a yellow app to fit my colour scheme (lol don't judge) so I just typed in "yellow" and that brought me here. my only lament is that these are the type of game where you just play it once and basically delete it, which means I need a new app for my colour scheme. there's really no way to change that though (unless you want to make like a million more levels which is tiring) and it's a good game, so five stars.

I got this on my app recommendations on the App Store and got it because of its simple name and since getting I was hooked, I also got blue, green, red and black and they are also equally fun. The game has easy levels at the start and then they get harder with a few quite hard levels in between. Overall, the game is really good to pass the time while challenging your brain.

First off, it’s free. Completely free. There are zero odds. So what is it? It’s a puzzle game where each level has a set of rules to solve. You have to figure out the rules based on visual hints or user input. Why is this the best mobile I have ever played? This game is absolutely beautifully designed. It’s pleasant to play, it’s creative, and at times quite challenging. With every other game out there being so ad-heavy, this is a real treat! You will love this game if you even somewhat like puzzles!