Welcome to the forum @Mare9548! I read in your other message that you stumbled upon Mekorama only 3 days ago. This forum is nearly four years old so you'll find lots of basic levels and discussions true to the original game, but you'll also find all the ways people have found to exploit the game for new game behaviours and make new types of levels. Hope you find what you like most!
I've noticed it! It'll take me some time to figure it all out but I'm looking forward to it. I'm having as much fun playing as making levels