This game mainly takes practice, patience and a bit of luck.

Some tips I have gleaned from others are:
1. PRACTICE, pracitice, PRACTICE followed by healthy doses of PATIENCE.
2.Watch the end of the tube and hit the space bar as soon as you see the sloth (sock puppet looking thing).

Keep your hand on the over the space bar. Be prepared to try yet again.

If you don't want your score sent, close the window quickly. I use the time while the game is zooming in on the tube to position the mouse over the Close Program button (the X in the top corner in windows), or press CTRL-f4 (windows).