I wasted a bunch of time on this last nite - my mouse needs cleaning - the game was impossible with a malfunctioning mouse, or so I thought. Decided to clean the mouse, but before I could my teen son comes in, asks if his friend can stay over. His room is a mess so I said no, and as a joke added
"if you can beat all 20 levels of this then yeah, he can come over."
Darned kid finished it in 15 minutes.
I then cleaned the mouse, and did eventually manage to finish, but it took me a lot longer than 15 minutes

.