I prefer not to rant on about such things. But if you want, I can give you my reasons as to why I think it has bad game design.
The controls are wonky. After I noticed that you have to use both hands for the keyboard, I tried my luck with a controller. And through a controller, the movement is not properly aligned to the pad. The game is hyper-sensitive to the movement pad, making it difficult to control the character. The buttons for jumping and the like were alright, but again, movement was an issue, so I went through with it and stuck to the keyboard controls, which worked better at least.
(...)