Nice little platformer, i like the different abilities for the characters and that you have to use them all at specific points to unlock parts of the level, had a good laugh when i saw the old black knight blocking your way XD
Small issues i had, the father's sword range is definitively too short, and it's too bad that there's no background music. Other than that the game feels solid, pixel art is beautiful and i like the randomized pitch on some of the sound effects like the coins.
Well done :)