the inclusion of the double jump is genius. it gives you a degree of freedom that makes the game super fun, because it's a jump that you have to commit to, but you can still modify your trajectory to the options the game gives you WHILE wrong decisions punish you for not having strategised adequately. every decision you make with the jump has future consequences with risks and rewards depending on what you choose to do.
including the typical GnG gameplay loop about showing you a challenge with minimal randomisation to maintain variety while setting on stone how you can complete it, it hooks you in... Simple- challenging fun!