Many times I accidentally click the right click and therefore it make the game harder.
please move it to over key like the middle click or to the keyboard.
I finished the game!
Well, it is on keyboard already. I use it a lot when I try to beat my wife's best times on levels. Anyway, I added an "disable warp" option. If you check this, it won't speed up on right button (or arrow up on keyboard).
Maybe you change the option of this to for state options like the resolution box.
For both, only right click, only up key, none.
I guess user customisation of the keys is harder to do.
I use sometimes in this button, however most of the time I click accidentally in bad states.