Can I play with mouse buttons? since the game can be played with only 2 buttons if auto run is applied

Alt+tab seems barely working, and once the game hanged a bit but since you can't tab out i almost had to reboot my pc, and this can be solved and is handy to have is the ability to run this in a windowed mode, also for those who like to do two things at the same time on 1 screen....

Not run. Windows 10 64bit

i don't like buggy achievements so are they all achievable?

I eat up platformers & need this in my life.