Rocket Bird

In this game you play as a wingless bird who can boost through the air using the jump button.  It's sorta like a double jump, if that second jump was the dash mechanic from Hyper Light Drifter.  You use this boost not only to get through the level, but also to eliminate enemies and break boxes.  You can only boost once before returning to the ground, but if you jump on or boost through an enemy you get another boost.  Because of this system, enemies are not only obstacles, but they now become a helpful, but risky, platform.   So TL DR; boost mechanic can help you maneuver in air and defeat baddies.  Enemies are obstacles but are also how you recharge your boost.