Until recently, it was stated here that the game supports touchscreen input, as a source the Steam curator 'Touch-friendly games' (6857883). I own this game and have checked it - on my device it does not respond at all to finger input within the levels, the indication seems to me to be purely by guesswork without any proof. I have opened a dispute in the related group. If there is any other information coming and the usage might be possible in a different system configuration, I'll gladly update the entry immediately. Otherwise, I consider it to be simply untrue.
https://steamcommunity.com/groups/touch-friendly-games/discussions/2/3391798007031953228/