Really great game!
My first playthrough was on a touchpad, which I lost with 40 seconds on the clock. With mouse, it is significantly easier, maybe too easy in my opinion.
I really like the gradual introduction of enemies, although I killed the white and green ones always before they could do anything, so I had to deliberately let them hit me to find out what they do. The red enemy is the only dangerous one I would say.
The pace in the beginning could be faster.