Ok, I understand your worries, I will try to do something in html version
Viewing post in Erinys Stories: Basement Perversions comments
The space you have to target will not particularly change between the downloaded and the html versions, if you want to make it "fun" for everyone you could make an easy, medium and hard version with a larger target on the easy, a medium sized target on medium and a tiny target on hard. The other option would be a means to skip a mini game and still get the reward maybe with a note saying you advise against this for the sake of fun.