This game lagged a lot, to the point that the level in that first screenshot was hard to get through due to how much the controls suffered.
The "e" in the second level doesn't make it clear what it's supposed to do, and I couldn't get it to do anything. Further, the sheer number of clones that ended up on screen while trying made the level impossible. I eventually found the "r" button to reset, but until then I was stuck. The fact that the game is fullscreen and doesn't seem to have an in-game way to quit is all the more aggravating. On top of that, even when trying to play with a freshly cleared level, the box goes flying at the slightest nudge and then gets stuck in a way anytime it hits one.