Totally awesome game idea! I like it a lot.
At the beginning I did not understand how to use the controls correctly. A additional text description or a short tutorial would help a lot (maybe you can add this later). I understood the description as I could use mouse or keyboard and first tried to get him into the hole with just strokes, wondering why the first level was already so hard to solve. After the 3rd level I aborted and went into the menu again - to look up the controls. Unfortunately, I wasn't able to look up the controls during the game again on my second try. So I had to restart... because it was a bit hard to just memorize all the controls. Here a separate tutorial level would be nice where you are instructed what to do and which keys to press.
The stroke control seems to be a bit weird to me, the strength seems to be randomly adapted while you hole and not release it.... and there is no way to abort it (I would add a key or right mouse button, or a "cancel" area to drag in on the screen for this), this sometimes is bad if you started your stroke from a sub-optimal starting point to reach the desired final strength.
Also I would like to have a look at the whole level to see where the goal is. Either by scrolling there or a mini map could be added maybe just as a temporary overlay activated by a key. And for a final release I would need a high score page and a different page shown at the end, so I know this is now my final score. It just kicked me back to the main menu and I realized: Oh! I've completed the game...
Apart from that the game idea is awesome. The music is decent and the sound effects add some fun too. Especially, if the guy is falling down from the platform. And also some game mechanics like "jumping in the air" is totally fun. I also like the emotional comments about the final outcome of each level. There should be really such a nice commenting on the final result... to encourage the player to try again and get better. Maybe even by just comparing to the last round "Well, still bad... BUT, you got 10 points better than last round! That's AWESOME! Keep it up!"
Well.. Having said this (and given alle the feedback): KEEP IT UP! This game it already really good and has quite some potential to really go viral. 👏
PS: I totally love the intro before the main menu. It's very encouraging... and fun to watch. However I'd probably skip it, if the player comes back to the main menu should be skip-able with any key strokes (maybe it is already?).