28 wasn't that hard tbh, took two tries to get, found 29 quite a bit harder. But definitely an interesting idea :) I agree with the previous post of that spikes could do with some better contrast to the floor, as well as not kill from the sides (they're spikes, not bombs :p).
Seems there was a mute button already, just that the game repeats the keyboard commands way too fast. Also, if you hug the walls for a bit, it starts warping the tunnel.
After playing through it, it seems pretty solid. Most levels were done in one try though. The ones that require you to be on two spots almost at the same time were a bit trickier however. And the "Walkthrough" button should be moved somewhere else, as some levels (almost) requires you to put stuff where it is.
Ripoff/stolen of a game that was made based on a game the same creator as this one created, how would that even work (ripping off yourself)? :P (Note: I'm saying it isn't a ripoff, in case it got too confusing ;P)
 "Spikes Tend to Kill You"){kind=icon}
 "Warp Game"){kind=icon}
 "Police Truck"){kind=icon}
 "Armored Warfare"){kind=icon}
 "Faultline"){kind=icon}
 "Make It Epic"){kind=icon}
 "Stunt Crazy"){kind=icon}
 "Dirt Driller"){kind=icon}
 "Gravitex 2"){kind=icon}
 "Mad Shapes"){kind=icon}
 "Brick Attack"){kind=icon}
 "Death Worm"){kind=icon}
 "Sieger: Level Pack"){kind=icon}
 "Diamond Hollow"){kind=icon}
 "DuckLife3: Evolution"){kind=icon}