snakebird

If you get through most of Snakebird and still don't hate yourself, look into SSR.

As for a non-constraint type of game, Snakebird is really clever, and really hard.

Try out Snakebird first, it's cheaper and works great on mobile devices.

Currently playing Snakebird and it is driving me _nuts_.

Some more of my favorites along the same vein include Snakebird, Jelly no Puzzle, and ilomilo.

For a more mix between a normal game and puzzle game (like the original Portal game was) I can recommend Snakebird.

Snakebird's trailer reminds me a lot of Room to Grow.

For really good non-programming puzzle games, I'd recommend Snakebird[0] and Stephen's Sausage Roll[1].

Right now, he's building his own Snakebird.

Some good ones are Heroes of Sokoban I, II and III[1][2][3], A Good Snowman Is Hard To Build[4], Stephen's Sausage Roll[5], Ferdy the Cat[6], Kine[7], Snakebird[8] and Baba is You[9].

For what it's worth, the only Android games I've ever paid money for are Snakebird, Ending, Super Hexagon, and a chess training app, and if I remember correctly all four were free no ads with paid additional levels.

Some more of my favorites along the same vein include Snakebird, Jelly no Puzzle, and ilomilo.

For a more mix between a normal game and puzzle game (like the original Portal game was) I can recommend Snakebird.

Snakebird's trailer reminds me a lot of Room to Grow.