Particles
Spawners
Primitive Traps
All in all, these three things actually add a decent amount of gameplay in. In response to DecipherOne's question last post about the gameplay: We are going for an action/adventure kind of theme with heavy puzzle elements. Our goal it to make it where the player can brute force through every level or avoid combat completely through clever planning. The game pace is probably most similar to Zelda: A Link to the Past.
I put a video together showing the Imp character defeating a couple of varas as well as some of the early trap devices. I used a bit too much compression though and the video is kinda blurry, so I'll be making a new one and replacing the link sometime later today.
VIDEO REMOVED (sorry, switching hosts)
Also, you will need the XVid Codec to view the video. This can be found here.