The core gameplay loop is there! The key/door mechanic seems a bit weird as the "loop" character needs to be on the key the frame before you go to the door tile. I would also add the ability to move diagonally that way you can have puzzles that require you to think of the timing as currently with the parity, you can only get to half of the tiles on an odd number move and the other half on an even number move. Which would make puzzle design more dynamic lol
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thank you advice.
The key/door was placed there on purpose. I want player need plan each step, just as you said, now the buttons should be in odd numbers step and the doors should be in even numbers step.
In my plan the past oneself can push play if player use that function, i think it will make puzzle design more dynamic.Unfortunately, I don't have time to add him.There should have been two more levels originally, It takes 2 to 3 rounds of using the teleportation mechanism to reach the destination.