(this isnt hate, just criticism and also im comparing the hardmode to the normal versions of the level) sublevel 12 has nothing changed except fog, sublevel 13 is a decent hardmode since less time on the blue button and more buttons which could help in slowing down, sublevel 14 doesent need that much chasing walls although i do think that the lava is fine so just like make an extension and keep the lava, sublevel 15 has the exact same problems as sublevel 5 sublevel 10 sublevel 15 sublevel sublevel 20 sublevel H-5 sublevel H-10 except it doesent really try to make it much harder like they could have added lava but they decided to add a chasing wall and fog, sublevel 16 adds nothing except fog a few more buttons and a chasing wall like they could have added a semi extension to the level