As someone who grew up in the Newgrounds flash game era, this game does feel like one of those old "super crazy hard" games you'd play sometimes, but just like those old games, it's pretty insane and not actually that much fun, at least with how it is now. I revisited World's Hardest Game and I noticed that although it's very hard, it does give you a bit of room to experiment with the obstacles so you can try different approaches to the same level. I think that you could try making the first few levels short with some more wiggle room, but still challenging, so the player can better learn the game's controls. You can totally make a hard game, but right now it's not even possible unless you play the same section of the first level over and over, which is gonna be a turn off for most players, even those that do like a good challenge.