If you want a fun extra challenge, try beating the game while avoiding shooting at all costs. Every level is possible without firing a single gunshot, except the very first one (1 shot required) and the "shoot the glass under them" one, which requires 4 (grabbing and throwing any of the guys will just hit the glass below, not the other dudes). Some others require LOTS of thinking, planning, precision and speed though, so make sure you know how to use best all of the game's mechanics (except aerial takedown) before attempting this
Anyways, amazing game I come back to every so often to have a fun time