Any tips how to beat bonus level 4? Collect something or what? How to get the achievement?

Hi, I'm trying to get the achievement "NINJA ASSASSIN". I've destroyed shuriken-throwing robot several times, but it didn't pop up. Could it be a bug? Thank you.

TIPS ON LEVEL 14 ... BEFORE i LOSE MY MIND .. PLEASE?

I'm trying to do a review of the game for our curator page. I tried to play, but there is something wrong, the player ship never shows up on the screen. I mean that literally, everywhere you should see the player ship, even in the maintenance area, the player ship does not appear. The levels play out, but no player ship ever appears. I got five Steam achievements doing nothing, but watching the screen scroll by for four levels. I'm thinking maybe you don't have a playable version of the game on Steam, ma...

Hello, is it planned to add Steam Cloud support to the game some day? That would be amazing. Just played the game for about 3 hours and really enjoyed it. I'm at level 9 now and it would be nice to take the progress to my main system via Steam Cloud. ...