Super Antlion World is the mod for Half-life 2 with full 3d camera control. In this mod, you are Antlion. You can jump on the enemies to harm them, or attack them from the ground with your left or right leg( or both for a combined attack ), and you can even turn into a shadow that kills everyone next to it, but beware!!!, your energy will decrease while you are doing this so use it wisely.
Fully 3d view of antlion jumping.