Hi here's some tips on playing the game incase anyone's confused!
E to grab the blocks and move them around, sometimes when you move you can slide them when letting go
Press F when you and the block are standing on the platform, this will connect the two blocks on there in each room meaning you can move them at the same time with one character. Sometimes it doesn't work with one character to entagle so swap to the other one instead
Also, the last level is just there to be pretty so once you see it that just means you beat the game!